CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>Boeing Vertol XCH-62 - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )enwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy", "wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"9e761b02-e9d0-4074-9b33-4eb58f983331","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Boeing_Vertol_XCH-62","wgTitle":"Boeing Vertol XCH-62","wgCurRevisionId":1256959194,"wgRevisionId":1256959194,"wgArticleId":11378800,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Articles with short description","Short description is different from Wikidata","Commons category link is on Wikidata","Boeing aircraft","United States military helicopters","1970s United States helicopters","Tandem rotor helicopters","Cancelled military aircraft projects of the United States","Three-turbine helicopters"],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"Boeing_Vertol_XCH-62", "wgRelevantArticleId":11378800,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":false,"wgFlaggedRevsParams":{"tags":{"status":{"levels":1}}},"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":20000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q3641559","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform" ,"platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","jquery.makeCollapsible.styles":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","site","mediawiki.page.ready","jquery.makeCollapsible","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.ReferenceTooltips","ext.gadget.switcher","ext.urlShortener.toolbar", "ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cjquery.makeCollapsible.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/a/a2/Boeing_XCH-62.jpg"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="564"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/a/a2/Boeing_XCH-62.jpg"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="376"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="301"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Boeing Vertol XCH-62 - Wikipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//en.m.wikipedia.org/wiki/Boeing_Vertol_XCH-62"> <link rel="alternate" type="application/x-wiki" title="Edit this page" href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (en)"> <link rel="EditURI" type="application/rsd+xml" href="//en.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://en.wikipedia.org/wiki/Boeing_Vertol_XCH-62"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en"> <link rel="alternate" type="application/atom+xml" title="Wikipedia Atom feed" href="/w/index.php?title=Special:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Boeing_Vertol_XCH-62 rootpage-Boeing_Vertol_XCH-62 skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Jump to content</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Main menu" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Main menu</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Main menu</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">hide</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigation </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-contents" class="mw-list-item"><a href="/wiki/Wikipedia:Contents" title="Guides to browsing Wikipedia"><span>Contents</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:Current_events" title="Articles related to current events"><span>Current events</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:Random" title="Visit a randomly selected article [x]" accesskey="x"><span>Random article</span></a></li><li id="n-aboutsite" class="mw-list-item"><a href="/wiki/Wikipedia:About" title="Learn about Wikipedia and how it works"><span>About Wikipedia</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us" title="How to contact Wikipedia"><span>Contact us</span></a></li> </ul> </div> </div> <div id="p-interaction" class="vector-menu mw-portlet mw-portlet-interaction" > <div class="vector-menu-heading"> Contribute </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Help:Contents" title="Guidance on how to use and edit Wikipedia"><span>Help</span></a></li><li id="n-introduction" class="mw-list-item"><a href="/wiki/Help:Introduction" title="Learn how to edit Wikipedia"><span>Learn to edit</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Community_portal" title="The hub for editors"><span>Community portal</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes to Wikipedia [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_upload_wizard" title="Add images or other media for use on Wikipedia"><span>Upload file</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Main_Page" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="The Free Encyclopedia" src="/static/images/mobile/copyright/wikipedia-tagline-en.svg" width="117" height="13" style="width: 7.3125em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Search Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Search</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Search Wikipedia" aria-label="Search Wikipedia" autocapitalize="sentences" title="Search Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Search</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personal tools"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en" class=""><span>Donate</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:CreateAccount&returnto=Boeing+Vertol+XCH-62" title="You are encouraged to create an account and log in; however, it is not mandatory" class=""><span>Create account</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:UserLogin&returnto=Boeing+Vertol+XCH-62" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o" class=""><span>Log in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Log in and more options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personal tools" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personal tools</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en"><span>Donate</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&returnto=Boeing+Vertol+XCH-62" title="You are encouraged to create an account and log in; however, it is not mandatory"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Create account</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:UserLogin&returnto=Boeing+Vertol+XCH-62" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Help:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Contents" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contents</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-Development" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Development"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Development</span> </div> </a> <ul id="toc-Development-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Design" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Design"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Design</span> </div> </a> <ul id="toc-Design-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Specifications_(XCH-62A)" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Specifications_(XCH-62A)"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Specifications (XCH-62A)</span> </div> </a> <ul id="toc-Specifications_(XCH-62A)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>References</span> </div> </a> <button aria-controls="toc-References-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle References subsection</span> </button> <ul id="toc-References-sublist" class="vector-toc-list"> <li id="toc-Citations" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Citations"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>Citations</span> </div> </a> <ul id="toc-Citations-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliography" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Bibliography"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.2</span> <span>Bibliography</span> </div> </a> <ul id="toc-Bibliography-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Boeing Vertol XCH-62</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 6 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-6" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">6 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Boeing_Vertol_XCH-62" title="Boeing Vertol XCH-62 – Spanish" lang="es" hreflang="es" data-title="Boeing Vertol XCH-62" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Boeing_Vertol_XCH-62" title="Boeing Vertol XCH-62 – Indonesian" lang="id" hreflang="id" data-title="Boeing Vertol XCH-62" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Boeing_Vertol_XCH-62" title="Boeing Vertol XCH-62 – Italian" lang="it" hreflang="it" data-title="Boeing Vertol XCH-62" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/XCH-62_(%E8%88%AA%E7%A9%BA%E6%A9%9F)" title="XCH-62 (航空機) – Japanese" lang="ja" hreflang="ja" data-title="XCH-62 (航空機)" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/Boeing_Vertol_XCH-62" title="Boeing Vertol XCH-62 – Tajik" lang="tg" hreflang="tg" data-title="Boeing Vertol XCH-62" data-language-autonym="Тоҷикӣ" data-language-local-name="Tajik" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/XCH-62" title="XCH-62 – Chinese" lang="zh" hreflang="zh" data-title="XCH-62" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q3641559#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Boeing_Vertol_XCH-62" title="View the content page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:Boeing_Vertol_XCH-62" rel="discussion" title="Discuss improvements to the content page [t]" accesskey="t"><span>Talk</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Boeing_Vertol_XCH-62"><span>Read</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=history" title="Past revisions of this page [h]" accesskey="h"><span>View history</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Tools</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Boeing_Vertol_XCH-62"><span>Read</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=history"><span>View history</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/Boeing_Vertol_XCH-62" title="List of all English Wikipedia pages containing links to this page [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/Boeing_Vertol_XCH-62" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Boeing_Vertol_XCH-62&oldid=1256959194" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:CiteThisPage&page=Boeing_Vertol_XCH-62&id=1256959194&wpFormIdentifier=titleform" title="Information on how to cite this page"><span>Cite this page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FBoeing_Vertol_XCH-62"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FBoeing_Vertol_XCH-62"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=Boeing_Vertol_XCH-62&action=show-download-screen" title="Download this page as a PDF file"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Boeing_Vertol_XCH-62&printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Boeing_Vertol_XCH-62" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q3641559" title="Structured data on this page hosted by Wikidata [g]" accesskey="g"><span>Wikidata item</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Cancelled American heavy-lift helicopter</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><style data-mw-deduplicate="TemplateStyles:r1248642317">.mw-parser-output .ib-aircraft .infobox-above{line-height:1.6em;background-color:#eee}.mw-parser-output .ib-aircraft .infobox-header{border-top:1px solid #a2a9b1;border-bottom:1px solid #a2a9b1;line-height:23px;background-color:#eee}.mw-parser-output .ib-aircraft-caption{padding:0.3em 0 0 0}.mw-parser-output .ib-aircraft-caption-left .infobox-full-data,.mw-parser-output .ib-aircraft-caption-left .infobox-data,.mw-parser-output .ib-aircraft-caption-left .infobox-label{text-align:left}.mw-parser-output .ib-aircraft .mergedbottomrow .infobox-full-data,.mw-parser-output .ib-aircraft .mergedbottomrow .infobox-data,.mw-parser-output .ib-aircraft .mergedbottomrow .infobox-label{border-bottom:1px solid #a2a9b1}@media(min-width:720px){.mw-parser-output .ib-aircraft .infobox-label{width:30%;padding-right:3px}.mw-parser-output .ib-aircraft .infobox-data{width:50%}}</style><table class="infobox ib-aircraft vcard"><tbody><tr><th colspan="2" class="infobox-above">XCH-62 HLH</th></tr><tr><td colspan="2" class="infobox-full-data"><span class="mw-image-border" typeof="mw:File"><a href="/wiki/File:Boeing_XCH-62.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Boeing_XCH-62.jpg/300px-Boeing_XCH-62.jpg" decoding="async" width="300" height="141" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/a/a2/Boeing_XCH-62.jpg 1.5x" data-file-width="445" data-file-height="209" /></a></span></td></tr><tr><th colspan="2" class="infobox-header">General information</th></tr><tr><th scope="row" class="infobox-label">Type</th><td class="infobox-data">Heavy-lift helicopter</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Aerospace_manufacturer" title="Aerospace manufacturer">Manufacturer</a></th><td class="infobox-data"><a href="/wiki/Boeing_Rotorcraft_Systems" title="Boeing Rotorcraft Systems">Boeing Vertol</a></td></tr><tr><th scope="row" class="infobox-label">Status</th><td class="infobox-data">Program terminated</td></tr><tr><th scope="row" class="infobox-label">Primary user</th><td class="infobox-data"><a href="/wiki/United_States_Army" title="United States Army">United States Army</a></td></tr><tr><th scope="row" class="infobox-label">Number built</th><td class="infobox-data">1 (never completed)</td></tr></tbody></table> <p>The <b>Boeing Vertol XCH-62</b> (<b>Model 301</b>) was a triple-<a href="/wiki/Turbine" title="Turbine">turbine</a>, heavy-lift <a href="/wiki/Helicopter" title="Helicopter">helicopter</a> project designed for the <a href="/wiki/United_States_Army" title="United States Army">United States Army</a> by <a href="/wiki/Boeing_Rotorcraft_Systems" title="Boeing Rotorcraft Systems">Boeing Vertol</a>. Approved in 1971, one prototype reached 95% completion before it was canceled in 1975. The prototype was scrapped in 2005. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Development">Development</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit&section=1" title="Edit section: Development"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>While the <a href="/wiki/CH-47_Chinook" class="mw-redirect" title="CH-47 Chinook">CH-47 Chinook</a> is a large helicopter by American standards, its payload of 28,000 lb (13,000 kg) is dwarfed by the huge Soviet-Russian heavy-lift helicopters such as the <a href="/wiki/Mil_Mi-26" title="Mil Mi-26">Mil Mi-26</a>, with 44,000 lb (20,000 kg) payload, and the experimental <a href="/wiki/Mil_V-12" title="Mil V-12">Mil V-12</a>, with 55,000 to 88,000 lb (25,000 to 40,000 kg) payload. For a long time Boeing and the US military had an urge to match or top the Mil heavy lifters. In the late 1960s, Boeing came up with designs for machines with broad similarities to the Sea Knight and Chinook, but about twice the size of the Chinook in terms of linear dimensions. Proposed machines included the "Model 227" transport and the "Model 237" flying crane.<sup id="cite_ref-Vectorsite_1-0" class="reference"><a href="#cite_note-Vectorsite-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>The <a href="/wiki/U.S._Department_of_Defense" class="mw-redirect" title="U.S. Department of Defense">U.S. Department of Defense</a> (DoD) issued a <a href="/wiki/Request_for_proposal" title="Request for proposal">request for proposal</a> (RFP) for a Heavy Lift Helicopter (HLH) in November 1970. On May 7, 1971, the DoD announced the selection of Boeing Vertol to perform the first phase of HLH development.<sup id="cite_ref-HLH_Main_Engines_2-0" class="reference"><a href="#cite_note-HLH_Main_Engines-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Following award of an Army contract for an HLH prototype in 1973, Boeing did move forward on building an oversized flying crane machine, the "XCH-62". The XCH-62 prototype was in an advanced state of assembly in 1975, being readied for a planned initial flight in 1976.<sup id="cite_ref-ARD197503_3-0" class="reference"><a href="#cite_note-ARD197503-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> The XT701 engine had passed its 30-hour Prototype Preliminary Flight Rating Test (PPFRT) on March 12, 1975, and then passed a 60-hour Safety Demonstration Test (SDT) on August 4.<sup id="cite_ref-1978StingerRedmond_4-0" class="reference"><a href="#cite_note-1978StingerRedmond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> However, the program was officially canceled on August 1. At the time of cancellation, the prototype was at 95% completion, and it needed about three months of final assembly and checkouts before rollout and installation for pre-<a href="/wiki/Flight_testing" class="mw-redirect" title="Flight testing">flight testing</a>.<sup id="cite_ref-BVFinalReport1980_5-0" class="reference"><a href="#cite_note-BVFinalReport1980-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page: 3">: <a rel="nofollow" class="external text" href="https://archive.org/details/DTIC_ADA085290/page/n4">3</a> </span></sup> </p><p>Failures in the spiral bevel gearing of the main transmission were experienced in tests because the method of analysis employed had not considered the effect of rim bending. Consequently, new gears with strengthened rims were designed and fabricated. For a more accurate prediction of the load capacity of the gears, an extensive Finite Element Method (FEM) system was developed. The U.S. Army's XCH-62 HLH aft rotor transmission was finally successfully tested at full design torque and speed, but the US Congress cut funding for the program in August 1975.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The designers of the <a href="/wiki/Mil_Mi-26" title="Mil Mi-26">Mil Mi-26</a> avoided similar problems by using a split-torque design in the main rotor transmission.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>Subsequent attempts were made to finish the incomplete XCH-62 prototype,<sup id="cite_ref-PM198209_8-0" class="reference"><a href="#cite_note-PM198209-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-PM198504_9-0" class="reference"><a href="#cite_note-PM198504-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> which had a serial number of 73-22012.<sup id="cite_ref-AN20051120_10-0" class="reference"><a href="#cite_note-AN20051120-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> In the mid-1980s, the Army, the US <a href="/wiki/National_Aeronautics_%26_Space_Administration" class="mw-redirect" title="National Aeronautics & Space Administration">National Aeronautics & Space Administration</a> (NASA), and the <a href="/wiki/Defense_Advanced_Research_Projects_Agency" class="mw-redirect" title="Defense Advanced Research Projects Agency">Defense Advanced Research Projects Agency</a> (DARPA) collaborated on a scheme to finish the XCH-62 for experimental flights, requesting a combined US$71 million in funding through fiscal year 1989.<sup id="cite_ref-WaPoWilson_11-0" class="reference"><a href="#cite_note-WaPoWilson-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> However, Congress declined funding, and the craft remained incomplete.<sup id="cite_ref-Vectorsite_1-1" class="reference"><a href="#cite_note-Vectorsite-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The prototype was moved from a warehouse storage site in <a href="/wiki/Philadelphia,_Pennsylvania" class="mw-redirect" title="Philadelphia, Pennsylvania">Philadelphia, Pennsylvania</a>, floated by barge to <a href="/wiki/Panama_City,_Florida" title="Panama City, Florida">Panama City, Florida</a>,<sup id="cite_ref-OS19871209_12-0" class="reference"><a href="#cite_note-OS19871209-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> and then lifted by a <a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">CH-47D Chinook</a> helicopter to the <a href="/wiki/US_Army_Aviation_Museum" class="mw-redirect" title="US Army Aviation Museum">US Army Aviation Museum</a> at <a href="/wiki/Fort_Rucker,_Alabama" class="mw-redirect" title="Fort Rucker, Alabama">Fort Rucker, Alabama</a> on December 8, 1987.<sup id="cite_ref-PNJ19871209_13-0" class="reference"><a href="#cite_note-PNJ19871209-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> The XCH-62 prototype, the largest helicopter ever built in the western countries, was displayed at the US Army Aviation Museum until it was later scrapped in 2005.<sup id="cite_ref-AN20051120_10-1" class="reference"><a href="#cite_note-AN20051120-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> In 2008, several parts were sent to the <a href="/wiki/The_Helicopter_Museum_(Weston)" class="mw-redirect" title="The Helicopter Museum (Weston)">Helicopter Museum</a> at <a href="/wiki/Weston-super-Mare" title="Weston-super-Mare">Weston-super-Mare</a> (United Kingdom), to be exhibited there.<sup id="cite_ref-FTHM_14-0" class="reference"><a href="#cite_note-FTHM-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Design">Design</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit&section=2" title="Edit section: Design"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The XCH-62 is a <a href="/wiki/Tandem_rotor" class="mw-redirect" title="Tandem rotor">tandem rotor</a> helicopter, with four blades on each rotor. Its rotor diameter was to be 92 ft (28 m), fuselage length 89 ft 3 in (27.20 m), and footprint length 162 ft 3 in (49.45 m). The maximum width with blades folded was 29 ft 10 in (9.09 m).<sup id="cite_ref-ARD197401_15-0" class="reference"><a href="#cite_note-ARD197401-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> The rotor blade had a length was 42 ft (13 m), a chord of 40 in (1,000 mm), and a weight of 750 lb (340 kg).<sup id="cite_ref-USSenate1974_16-0" class="reference"><a href="#cite_note-USSenate1974-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page: 2699">: <a rel="nofollow" class="external text" href="https://hdl.handle.net/2027/umn.31951d03440242r?urlappend=%3Bseq=705">2699</a> </span></sup> The fuselage was mounted high to provide 14 ft (4.3 m) of ground clearance, which let the helicopter taxi over a container for lifting. However, the taxiing requirement was later eliminated because of the helicopter's ability to hover and lift a load, so a second prototype would probably have had only 8 ft 8 in (2.64 m) of ground clearance, which would lower the overall height and reduce the amount of modifications required for the helicopter to fit into hangars.<sup id="cite_ref-USSenate1974_16-1" class="reference"><a href="#cite_note-USSenate1974-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page: 2695">: <a rel="nofollow" class="external text" href="https://hdl.handle.net/2027/umn.31951d03440242r?urlappend=%3Bseq=701">2695</a> </span></sup> </p><p>The rotorcraft was designed to lift a standard <a href="/wiki/United_States_Department_of_Defense" title="United States Department of Defense">Department of Defense</a>, 8 ft × 8 ft × 20 ft (2.4 m × 2.4 m × 6.1 m) MILVAN container weighing up to 22.4 short tons (20,300 kg).<sup id="cite_ref-ARD197401_15-1" class="reference"><a href="#cite_note-ARD197401-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> Its widely spaced landing gear would allow it to straddle heavy cargoes such as armored vehicles, and still carry twelve troops in its slender fuselage. Boeing also considered selling a commercial version, the "Model 301".<sup id="cite_ref-Vectorsite_1-2" class="reference"><a href="#cite_note-Vectorsite-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The helicopter was powered by three Allison XT701-AD-700 turboshafts, developed from Allison's <a href="/wiki/Allison_T56" title="Allison T56">501-M62B</a> engines, which each produced 8,079 shp (6,025 kW) static sea-level power<sup id="cite_ref-ARD197401_15-2" class="reference"><a href="#cite_note-ARD197401-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> to rotate a shaft at 11,485 <a href="/wiki/Rpm" class="mw-redirect" title="Rpm">rpm</a>. A combiner gearbox converted the power of the three shafts into two transmission shafts turning at 7,976 rpm, leading into forward and aft rotor transmissions that produced 10,620 shp (7,920 kW) at 155.7 rpm.<sup id="cite_ref-Schneider1980_17-0" class="reference"><a href="#cite_note-Schneider1980-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> The XCH-62 was designed to be the first helicopter with a <a href="/wiki/Fly-by-wire" title="Fly-by-wire">fly-by-wire</a> <a href="/wiki/Flight_control_system" class="mw-redirect" title="Flight control system">flight control system</a> without a mechanical backup.<sup id="cite_ref-ARD197401_15-3" class="reference"><a href="#cite_note-ARD197401-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Specifications_(XCH-62A)"><span id="Specifications_.28XCH-62A.29"></span>Specifications (XCH-62A)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit&section=3" title="Edit section: Specifications (XCH-62A)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File"><a href="/wiki/File:Boeing_XCH-62_(VS).png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Boeing_XCH-62_%28VS%29.png/300px-Boeing_XCH-62_%28VS%29.png" decoding="async" width="300" height="186" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Boeing_XCH-62_%28VS%29.png/450px-Boeing_XCH-62_%28VS%29.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Boeing_XCH-62_%28VS%29.png/600px-Boeing_XCH-62_%28VS%29.png 2x" data-file-width="678" data-file-height="420" /></a><figcaption></figcaption></figure> <p style="font-size: 90%; margin:0;"><i>Data from</i> America's heavy lift helicopter<sup id="cite_ref-Wilson_p47_18-0" class="reference"><a href="#cite_note-Wilson_p47-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup></p><p><span style="font-size:120%"><b>General characteristics</b></span> </p><ul><li><b>Crew:</b> 5 (pilot, copilot, flight engineer, load controlling crewman, and crew chief)<sup id="cite_ref-ARD197401_15-4" class="reference"><a href="#cite_note-ARD197401-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup></li> <li><b>Capacity:</b> 12 troops<sup id="cite_ref-USSenate1974_16-2" class="reference"><a href="#cite_note-USSenate1974-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page: 2709">: 2709 </span></sup></li> <li><b>Length:</b> 87 ft 3 in (26.59 m) (overall fuselage length)</li> <li><b>Height:</b> 32 ft 3 in (9.83 m) (to top of pylon)</li> <li><b>Empty weight:</b> 59,580 lb (27,025 kg)</li> <li><b>Gross weight:</b> 118,000 lb (53,524 kg)</li> <li><b>Powerplant:</b> 3 × <a href="/wiki/Allison_T701" class="mw-redirect" title="Allison T701">Allison T701-AD-700</a> <a href="/wiki/Turboshaft" title="Turboshaft">turboshaft</a>, 8,080 hp (6,030 kW) each</li> <li><b>Main rotor diameter:</b> 2 × 92 ft 0 in (28.04 m)</li> <li><b>Main rotor area:</b> 13,260 sq ft (1,232 m<sup>2</sup>)</li></ul> <p><span style="font-size:120%"><b>Performance</b></span> </p> <ul><li><b>Maximum speed:</b> 145 kn (167 mph, 269 km/h) with external load</li> <li><b>Combat range:</b> 150 nmi (170 mi, 280 km)</li> <li><b>Ferry range:</b> 1,500 nmi (1,700 mi, 2,800 km)</li></ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Aerial_crane" title="Aerial crane">Aerial crane</a></li></ul> <p><b>Related development</b> </p> <ul><li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">Boeing CH-47 Chinook</a></li> <li><a href="/wiki/Boeing_Vertol_BV-347" title="Boeing Vertol BV-347">Boeing Vertol BV-347</a></li></ul> <p><b>Aircraft of comparable role, configuration, and era</b> </p> <ul><li><a href="/wiki/Mil_Mi-10" title="Mil Mi-10">Mil Mi-10</a></li> <li><a href="/wiki/Sikorsky_S-73" title="Sikorsky S-73">Sikorsky S-73</a></li></ul> <p> <b>Related lists</b> </p> <ul><li><a href="/wiki/List_of_helicopters" class="mw-redirect" title="List of helicopters">List of helicopters</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Citations">Citations</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit&section=6" title="Edit section: Citations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-Vectorsite-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Vectorsite_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Vectorsite_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Vectorsite_1-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070807001809/http://www.vectorsite.net/avcobra_1.html#m4">"Greg Goebel's Vectorsite"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.vectorsite.net/avcobra_1.html#m4">the original</a> on August 7, 2007.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Greg+Goebel%27s+Vectorsite&rft_id=http%3A%2F%2Fwww.vectorsite.net%2Favcobra_1.html%23m4&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-HLH_Main_Engines-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-HLH_Main_Engines_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWoodleyCastle1973" class="citation conference cs1">Woodley, David R.; Castle, William S. (October 16–18, 1973). <i>Heavy lift helicopter main engines</i>. National Aerospace Engineering and Manufacturing Meeting. <i>SAE Technical Papers</i>. SAE Technical Paper Series. Vol. 1. Los Angeles, California, U.S.A.: <a href="/wiki/Society_of_Automotive_Engineers" class="mw-redirect" title="Society of Automotive Engineers">Society of Automotive Engineers</a> (SAE) (published February 1973). <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.4271%2F730920">10.4271/730920</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0148-7191">0148-7191</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=conference&rft.jtitle=SAE+Technical+Papers&rft.atitle=Heavy+lift+helicopter+main+engines&rft.volume=1&rft.date=1973-10-16%2F1973-10-18&rft_id=info%3Adoi%2F10.4271%2F730920&rft.issn=0148-7191&rft.aulast=Woodley&rft.aufirst=David+R.&rft.au=Castle%2C+William+S.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-ARD197503-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-ARD197503_3-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://hdl.handle.net/2027/osu.32435062846985?urlappend=%3Bseq=6">"Army revises HLH program, sets competitive prototype tests"</a>. R&D News. <i>Army Research and Development</i>. Vol. 16, no. 2. March–April 1975. pp. 4–5. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<a rel="nofollow" class="external text" href="https://hdl.handle.net/2027%2Fosu.32435062846985">2027/osu.32435062846985</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0004-2560">0004-2560</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Army+Research+and+Development&rft.atitle=Army+revises+HLH+program%2C+sets+competitive+prototype+tests&rft.volume=16&rft.issue=2&rft.pages=4-5&rft.date=1975-03%2F1975-04&rft_id=info%3Ahdl%2F2027%2Fosu.32435062846985&rft.issn=0004-2560&rft_id=https%3A%2F%2Fhdl.handle.net%2F2027%2Fosu.32435062846985%3Furlappend%3D%253Bseq%3D6&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-1978StingerRedmond-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-1978StingerRedmond_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFStingerRedmond1978" class="citation conference cs1">Stinger, D.H.; Redmond, W.A. (August 7–10, 1978). <i>Advanced gas turbine for marine propulsion model 570-K</i>. SAE West Coast Meeting, Town & Country. <i>SAE Technical Papers</i>. SAE Technical Paper Series. Vol. 1. San Diego, California, U.S.A.: <a href="/wiki/Society_of_Automotive_Engineers" class="mw-redirect" title="Society of Automotive Engineers">Society of Automotive Engineers</a> (SAE) (published February 1978). <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.4271%2F780702">10.4271/780702</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0148-7191">0148-7191</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=conference&rft.jtitle=SAE+Technical+Papers&rft.atitle=Advanced+gas+turbine+for+marine+propulsion+model+570-K&rft.volume=1&rft.date=1978-08-07%2F1978-08-10&rft_id=info%3Adoi%2F10.4271%2F780702&rft.issn=0148-7191&rft.aulast=Stinger&rft.aufirst=D.H.&rft.au=Redmond%2C+W.A.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-BVFinalReport1980-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-BVFinalReport1980_5-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBoeing_Vertol_Company1980" class="citation report cs1">Boeing Vertol Company (April 1980). <a rel="nofollow" class="external text" href="https://archive.org/details/DTIC_ADA085290">Heavy lift helicopter — Prototype technical summary</a> (Report). <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/227450087">227450087</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=report&rft.btitle=Heavy+lift+helicopter+%E2%80%94+Prototype+technical+summary&rft.date=1980-04&rft_id=info%3Aoclcnum%2F227450087&rft.au=Boeing+Vertol+Company&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2FDTIC_ADA085290&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.globalsecurity.org/military/systems/aircraft/h-62.htm">XCH-62 page on Globalsecurity.org</a></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text">Smirnov, G. "Multiple-Power-Path Nonplanetary Main Gearbox of the Mi-26 Heavy-Lift Transport Helicopter", Vertiflite March/April 1990, pp. 20-23</span> </li> <li id="cite_note-PM198209-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-PM198209_8-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://books.google.com/books?id=f9kDAAAAMBAJ&pg=PA173">"Meantime, back at Boeing..."</a> Technology update. <i><a href="/wiki/Popular_Mechanics" title="Popular Mechanics">Popular Mechanics</a></i>. Vol. 158, no. 3. September 1982. p. 173. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0032-4558">0032-4558</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Popular+Mechanics&rft.atitle=Meantime%2C+back+at+Boeing...&rft.volume=158&rft.issue=3&rft.pages=173&rft.date=1982-09&rft.issn=0032-4558&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3Df9kDAAAAMBAJ%26pg%3DPA173&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-PM198504-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-PM198504_9-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://books.google.com/books?id=YeQDAAAAMBAJ&pg=PA69">"Champion choppers"</a>. Technology update. <i><a href="/wiki/Popular_Mechanics" title="Popular Mechanics">Popular Mechanics</a></i>. Vol. 162, no. 4. April 1985. p. 69. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0032-4558">0032-4558</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Popular+Mechanics&rft.atitle=Champion+choppers&rft.volume=162&rft.issue=4&rft.pages=69&rft.date=1985-04&rft.issn=0032-4558&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DYeQDAAAAMBAJ%26pg%3DPA69&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-AN20051120-10"><span class="mw-cite-backlink">^ <a href="#cite_ref-AN20051120_10-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-AN20051120_10-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1"><a rel="nofollow" class="external text" href="http://www.aero-news.net/index.cfm?do=main.textpost&id=d07b9f97-11df-4fae-be11-93e7f7b4c58f">"XCH-62 destruction pictures cause a stir"</a>. <i>Aero-News Network</i>. November 20, 2005<span class="reference-accessdate">. Retrieved <span class="nowrap">August 9,</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Aero-News+Network&rft.atitle=XCH-62+destruction+pictures+cause+a+stir&rft.date=2005-11-20&rft_id=http%3A%2F%2Fwww.aero-news.net%2Findex.cfm%3Fdo%3Dmain.textpost%26id%3Dd07b9f97-11df-4fae-be11-93e7f7b4c58f&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-WaPoWilson-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-WaPoWilson_11-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWilson1984" class="citation news cs1">Wilson, George C. (December 13, 1984). <a rel="nofollow" class="external text" href="https://www.newspapers.com/newspage/437894339/">"Army seeks to test canceled helicopter"</a>. <i><a href="/wiki/Citizens%27_Voice" class="mw-redirect" title="Citizens' Voice">Citizens' Voice</a></i>. Washington, D.C., U.S.A. <a href="/wiki/The_Washington_Post" title="The Washington Post">The Washington Post</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1070-8626">1070-8626</a> – via <a href="/wiki/Newspapers.com" class="mw-redirect" title="Newspapers.com">Newspapers.com</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Citizens%27+Voice&rft.atitle=Army+seeks+to+test+canceled+helicopter&rft.date=1984-12-13&rft.issn=1070-8626&rft.aulast=Wilson&rft.aufirst=George+C.&rft_id=https%3A%2F%2Fwww.newspapers.com%2Fnewspage%2F437894339%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-OS19871209-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-OS19871209_12-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1"><a rel="nofollow" class="external text" href="https://www.newspapers.com/clip/41006178/xch-62/">"From drawing board to museum"</a>. The nation. <i><a href="/wiki/Orlando_Sentinel" title="Orlando Sentinel">Orlando Sentinel</a></i>. December 9, 1987. p. A-10. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0744-6055">0744-6055</a> – via <a href="/wiki/Newspapers.com" class="mw-redirect" title="Newspapers.com">Newspapers.com</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Orlando+Sentinel&rft.atitle=From+drawing+board+to+museum&rft.pages=A-10&rft.date=1987-12-09&rft.issn=0744-6055&rft_id=https%3A%2F%2Fwww.newspapers.com%2Fclip%2F41006178%2Fxch-62%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-PNJ19871209-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-PNJ19871209_13-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1"><a rel="nofollow" class="external text" href="https://www.newspapers.com/clip/41006254/xch-62-pg-2/">"Copter carry"</a>. National dateline. <i><a href="/wiki/Pensacola_News_Journal" title="Pensacola News Journal">Pensacola News Journal</a></i>. December 9, 1987. p. 4A. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/54453673">54453673</a> – via <a href="/wiki/Newspapers.com" class="mw-redirect" title="Newspapers.com">Newspapers.com</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Pensacola+News+Journal&rft.atitle=Copter+carry&rft.pages=4A&rft.date=1987-12-09&rft_id=info%3Aoclcnum%2F54453673&rft_id=https%3A%2F%2Fwww.newspapers.com%2Fclip%2F41006254%2Fxch-62-pg-2%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-FTHM-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-FTHM_14-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.hmfriends.org.uk/xch-62_hlh.htm">"Arrival of landing gear from Boeing Vertol XCH-62 (HLH)"</a>. <i>Friends of The Helicopter Museum</i><span class="reference-accessdate">. Retrieved <span class="nowrap">August 9,</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Friends+of+The+Helicopter+Museum&rft.atitle=Arrival+of+landing+gear+from+Boeing+Vertol+XCH-62+%28HLH%29&rft_id=http%3A%2F%2Fwww.hmfriends.org.uk%2Fxch-62_hlh.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-ARD197401-15"><span class="mw-cite-backlink">^ <a href="#cite_ref-ARD197401_15-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-ARD197401_15-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-ARD197401_15-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-ARD197401_15-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-ARD197401_15-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://hdl.handle.net/2027/msu.31293012265199?urlappend=%3Bseq=228">"H.L.H. 1975 flight test projected: Component technology program meeting development goal"</a>. <i>Army Research and Development</i>. Vol. 15, no. 1. January–February 1974. pp. 10–11. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<a rel="nofollow" class="external text" href="https://hdl.handle.net/2027%2Fmsu.31293012265199">2027/msu.31293012265199</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0004-2560">0004-2560</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Army+Research+and+Development&rft.atitle=H.L.H.+1975+flight+test+projected%3A+Component+technology+program+meeting+development+goal&rft.volume=15&rft.issue=1&rft.pages=10-11&rft.date=1974-01%2F1974-02&rft_id=info%3Ahdl%2F2027%2Fmsu.31293012265199&rft.issn=0004-2560&rft_id=https%3A%2F%2Fhdl.handle.net%2F2027%2Fmsu.31293012265199%3Furlappend%3D%253Bseq%3D228&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-USSenate1974-16"><span class="mw-cite-backlink">^ <a href="#cite_ref-USSenate1974_16-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-USSenate1974_16-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-USSenate1974_16-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFU.S._Senate_Research_and_Development_Subcommittee_of_the_Committee_on_Armed_Services1974" class="citation report cs1">U.S. Senate Research and Development Subcommittee of the Committee on Armed Services (March 18, 1974). <a rel="nofollow" class="external text" href="https://hdl.handle.net/2027/umn.31951d03440242r?urlappend=%3Bseq=655">Department of the Army: Heavy lift helicopter</a> (Report). Washington, D.C., U.S.A. pp. 2649-<a rel="nofollow" class="external text" href="https://hdl.handle.net/2027/umn.31951d03440242r?urlappend=%3Bseq=715">2709</a>. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<a rel="nofollow" class="external text" href="https://hdl.handle.net/2027%2Fumn.31951d03440242r">2027/umn.31951d03440242r</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=report&rft.btitle=Department+of+the+Army%3A+Heavy+lift+helicopter&rft.place=Washington%2C+D.C.%2C+U.S.A.&rft.pages=2649-2709&rft.date=1974-03-18&rft_id=info%3Ahdl%2F2027%2Fumn.31951d03440242r&rft.au=U.S.+Senate+Research+and+Development+Subcommittee+of+the+Committee+on+Armed+Services&rft_id=https%3A%2F%2Fhdl.handle.net%2F2027%2Fumn.31951d03440242r%3Furlappend%3D%253Bseq%3D655&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-Schneider1980-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-Schneider1980_17-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSchneider1980" class="citation conference cs1">Schneider, John J. (September 16–19, 1980). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20211105203753/https://dspace-erf.nlr.nl/xmlui/bitstream/handle/20.500.11881/1859/ERF%201980-03.pdf"><i>The developing technology and economics of large helicopters</i></a> <span class="cs1-format">(PDF)</span>. European Rotorcraft and Powered Lift Aircraft Forum (Sixth ed.). Bristol, England, U.K. pp. 3–1 to 3–15. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<a rel="nofollow" class="external text" href="https://hdl.handle.net/20.500.11881%2F1859">20.500.11881/1859</a>. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/9813207">9813207</a>. Archived from <a rel="nofollow" class="external text" href="https://dspace-erf.nlr.nl/xmlui/bitstream/handle/20.500.11881/1859/ERF%201980-03.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 2021-11-05<span class="reference-accessdate">. Retrieved <span class="nowrap">2020-08-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=conference&rft.btitle=The+developing+technology+and+economics+of+large+helicopters&rft.place=Bristol%2C+England%2C+U.K.&rft.pages=3-1+to+3-15&rft.edition=Sixth&rft.date=1980-09-16%2F1980-09-19&rft_id=info%3Ahdl%2F20.500.11881%2F1859&rft_id=info%3Aoclcnum%2F9813207&rft.aulast=Schneider&rft.aufirst=John+J.&rft_id=https%3A%2F%2Fdspace-erf.nlr.nl%2Fxmlui%2Fbitstream%2Fhandle%2F20.500.11881%2F1859%2FERF%25201980-03.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></span> </li> <li id="cite_note-Wilson_p47-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-Wilson_p47_18-0">^</a></b></span> <span class="reference-text">Wilson <i>Flight International</i> 13 July 1972, p.47.</span> </li> </ol></div></div> <div class="mw-heading mw-heading3"><h3 id="Bibliography">Bibliography</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit&section=7" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul li{list-style:none}@media(max-width:720px){.mw-parser-output .refbegin-hanging-indents>ul>li{padding-left:1.6em;text-indent:-1.6em}}.mw-parser-output .refbegin-columns{margin-top:0.3em}.mw-parser-output .refbegin-columns ul{margin-top:0}.mw-parser-output .refbegin-columns li{page-break-inside:avoid;break-inside:avoid-column}@media screen{.mw-parser-output .refbegin{font-size:90%}}</style><div class="refbegin" style=""> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBlackwell1973" class="citation magazine cs1">Blackwell, Brendan P. (August 1973). <a rel="nofollow" class="external text" href="https://hdl.handle.net/2027/msu.31293108025135?urlappend=%3Bseq=374">"H.L.H."</a> <i>U.S. Army Aviation Digest</i>. Vol. 19, no. 8. pp. 8–16. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<a rel="nofollow" class="external text" href="https://hdl.handle.net/2027%2Fmsu.31293108025135">2027/msu.31293108025135</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0004-2471">0004-2471</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=U.S.+Army+Aviation+Digest&rft.atitle=H.L.H.&rft.volume=19&rft.issue=8&rft.pages=8-16&rft.date=1973-08&rft_id=info%3Ahdl%2F2027%2Fmsu.31293108025135&rft.issn=0004-2471&rft.aulast=Blackwell&rft.aufirst=Brendan+P.&rft_id=https%3A%2F%2Fhdl.handle.net%2F2027%2Fmsu.31293108025135%3Furlappend%3D%253Bseq%3D374&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFriesSchneider1979" class="citation conference cs1">Fries, Gordon H.; Schneider, John J. (December 3–6, 1979). <i>HLH and beyond</i>. SAE Aerospace Meeting. <i>SAE Technical Papers</i>. SAE Technical Paper Series. Vol. 1. Los Angeles, California, U.S.A.: <a href="/wiki/Society_of_Automotive_Engineers" class="mw-redirect" title="Society of Automotive Engineers">Society of Automotive Engineers</a> (SAE) (published February 1979). <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.4271%2F791086">10.4271/791086</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0148-7191">0148-7191</a>. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/5817968838">5817968838</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=conference&rft.jtitle=SAE+Technical+Papers&rft.atitle=HLH+and+beyond&rft.volume=1&rft.date=1979-12-03%2F1979-12-06&rft_id=info%3Aoclcnum%2F5817968838&rft.issn=0148-7191&rft_id=info%3Adoi%2F10.4271%2F791086&rft.aulast=Fries&rft.aufirst=Gordon+H.&rft.au=Schneider%2C+John+J.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://hdl.handle.net/2027/uc1.31205012550834?urlappend=%3Bseq=559">"Heavy Lift Helicopter"</a>. Military Notes. <i>Military Review</i>. Vol. 51, no. 5. May 1971. p. 95. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<a rel="nofollow" class="external text" href="https://hdl.handle.net/2027%2Fuc1.31205012550834">2027/uc1.31205012550834</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1943-1147">1943-1147</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Military+Review&rft.atitle=Heavy+Lift+Helicopter&rft.volume=51&rft.issue=5&rft.pages=95&rft.date=1971-05&rft_id=info%3Ahdl%2F2027%2Fuc1.31205012550834&rft.issn=1943-1147&rft_id=https%3A%2F%2Fhdl.handle.net%2F2027%2Fuc1.31205012550834%3Furlappend%3D%253Bseq%3D559&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWilson1972" class="citation magazine cs1">Wilson, Michael (13 July 1972). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160305074039/http://www.flightglobal.com/pdfarchive/view/1972/1972%20-%201771.html">"America's heavy-lift helicopter"</a>. <i><a href="/wiki/Flight_International" title="Flight International">Flight International</a></i>. pp. 44c–47. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0015-3710">0015-3710</a>. Archived from <a rel="nofollow" class="external text" href="http://www.flightglobal.com/pdfarchive/view/1972/1972%20-%201771.html">the original</a> on 5 March 2016.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Flight+International&rft.atitle=America%27s+heavy-lift+helicopter&rft.pages=44c-47&rft.date=1972-07-13&rft.issn=0015-3710&rft.aulast=Wilson&rft.aufirst=Michael&rft_id=http%3A%2F%2Fwww.flightglobal.com%2Fpdfarchive%2Fview%2F1972%2F1972%2520-%25201771.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABoeing+Vertol+XCH-62" class="Z3988"></span></li></ul> </div> <p><i>The initial version of this article was based on a <a href="/wiki/Public_domain" title="Public domain">public domain</a> article from <a rel="nofollow" class="external text" href="https://vc.airvectors.net/index.html">Greg Goebel's Vectorsite</a>. </i> </p> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Boeing_Vertol_XCH-62&action=edit&section=8" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}</style><div class="side-box side-box-right plainlinks sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Boeing_Vertol_XCH-62" class="extiw" title="commons:Category:Boeing Vertol XCH-62">Boeing Vertol XCH-62</a></span>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="http://www.helis.com/70s/h_h62.php">XCH-62 Boeing Vertol HLH</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output .navbox-list-with-group{text-align:left;border-left-width:2px;border-left-style:solid}.mw-parser-output tr+tr>.navbox-abovebelow,.mw-parser-output tr+tr>.navbox-group,.mw-parser-output tr+tr>.navbox-image,.mw-parser-output tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Boeing_CH-46_Sea_Knight_&amp;_CH-47_Chinook_family" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:CH-47_Chinook_family" title="Template:CH-47 Chinook family"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:CH-47_Chinook_family" title="Template talk:CH-47 Chinook family"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:CH-47_Chinook_family" title="Special:EditPage/Template:CH-47 Chinook family"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Boeing_CH-46_Sea_Knight_&amp;_CH-47_Chinook_family" style="font-size:114%;margin:0 4em"><a href="/wiki/Boeing_Rotorcraft_Systems" title="Boeing Rotorcraft Systems">Boeing</a> <a href="/wiki/Boeing_CH-46_Sea_Knight" class="mw-redirect" title="Boeing CH-46 Sea Knight">CH-46 Sea Knight</a> & <a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">CH-47 Chinook</a> family</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Model numbers</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">107</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">114</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">141</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">143</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">145</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">165</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">173</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">176</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">216</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">219</a></li> <li><a class="mw-selflink selflink">227</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">234</a></li> <li><a class="mw-selflink selflink">237</a></li> <li><a class="mw-selflink selflink">301</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-307&action=edit&redlink=1" class="new" title="Boeing Vertol BV-307 (page does not exist)">307</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">308</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">309</a></li> <li><a href="/wiki/Boeing_Vertol_BV-347" title="Boeing Vertol BV-347">347</a></li> <li><a href="/wiki/Boeing_Chinook_(UK_variants)" title="Boeing Chinook (UK variants)">352</a></li> <li><a href="/wiki/Boeing_Model_360" title="Boeing Model 360">360</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">414</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="5" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:CH-46_Sea_Knight_Helicopter.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/49/CH-46_Sea_Knight_Helicopter.jpg/100px-CH-46_Sea_Knight_Helicopter.jpg" decoding="async" width="100" height="67" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/49/CH-46_Sea_Knight_Helicopter.jpg/150px-CH-46_Sea_Knight_Helicopter.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/49/CH-46_Sea_Knight_Helicopter.jpg/200px-CH-46_Sea_Knight_Helicopter.jpg 2x" data-file-width="1280" data-file-height="853" /></a></span><br /> <p><span typeof="mw:File"><a href="/wiki/File:NARA_111-CCV-105-CC65957_CH-47_lifting_off_from_Fire_Support_Base_Challenge_with_105_mm_howitzer_April_1970.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/NARA_111-CCV-105-CC65957_CH-47_lifting_off_from_Fire_Support_Base_Challenge_with_105_mm_howitzer_April_1970.jpg/100px-NARA_111-CCV-105-CC65957_CH-47_lifting_off_from_Fire_Support_Base_Challenge_with_105_mm_howitzer_April_1970.jpg" decoding="async" width="100" height="67" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/NARA_111-CCV-105-CC65957_CH-47_lifting_off_from_Fire_Support_Base_Challenge_with_105_mm_howitzer_April_1970.jpg/150px-NARA_111-CCV-105-CC65957_CH-47_lifting_off_from_Fire_Support_Base_Challenge_with_105_mm_howitzer_April_1970.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/97/NARA_111-CCV-105-CC65957_CH-47_lifting_off_from_Fire_Support_Base_Challenge_with_105_mm_howitzer_April_1970.jpg/200px-NARA_111-CCV-105-CC65957_CH-47_lifting_off_from_Fire_Support_Base_Challenge_with_105_mm_howitzer_April_1970.jpg 2x" data-file-width="800" data-file-height="533" /></a></span><br /> </p> <span typeof="mw:File"><a href="/wiki/File:CH-47_Chinook_-_RIAT_2015_(20820630144).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/CH-47_Chinook_-_RIAT_2015_%2820820630144%29.jpg/100px-CH-47_Chinook_-_RIAT_2015_%2820820630144%29.jpg" decoding="async" width="100" height="67" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/CH-47_Chinook_-_RIAT_2015_%2820820630144%29.jpg/150px-CH-47_Chinook_-_RIAT_2015_%2820820630144%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a9/CH-47_Chinook_-_RIAT_2015_%2820820630144%29.jpg/200px-CH-47_Chinook_-_RIAT_2015_%2820820630144%29.jpg 2x" data-file-width="3500" data-file-height="2333" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Military<br />designations</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">HC-1</a> <ul><li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">B</a></li></ul></li></ul> <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">H-46</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">H-47</a></li> <li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">H-49</a></li> <li><a class="mw-selflink selflink">H-62</a></li></ul> <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">HRB</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Foreign<br />variants</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><small>Canada</small></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">CH-113</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">CH-147</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><small>Italy</small></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">ETM-1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><small>Japan</small></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">KV-107</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><small>Sweden</small></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">HKP 4</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><small>United Kingdom</small></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_Chinook_(UK_variants)" title="Boeing Chinook (UK variants)">Chinook</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Notable aircraft</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Bravo_November" title="Bravo November">Bravo November</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Topics</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Accidents and incidents <ul><li><a href="/wiki/1986_British_International_Helicopters_Chinook_crash" title="1986 British International Helicopters Chinook crash">1986 Shetland Islands crash</a></li> <li><a href="/wiki/1994_Mull_of_Kintyre_Chinook_crash" title="1994 Mull of Kintyre Chinook crash">1994 Mull of Kintyre crash</a></li></ul></li> <li><a href="/wiki/Boeing_CH-47_Chinook_in_Australian_service" title="Boeing CH-47 Chinook in Australian service">Australian service</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Piasecki_Helicopter,_Vertol,_and_Boeing_Rotorcraft_Systems_model_numbers" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Boeing_Helicopters_model_numbers" title="Template:Boeing Helicopters model numbers"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Boeing_Helicopters_model_numbers" title="Template talk:Boeing Helicopters model numbers"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Boeing_Helicopters_model_numbers" title="Special:EditPage/Template:Boeing Helicopters model numbers"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Piasecki_Helicopter,_Vertol,_and_Boeing_Rotorcraft_Systems_model_numbers" style="font-size:114%;margin:0 4em"><a href="/wiki/Piasecki_Helicopter" title="Piasecki Helicopter">Piasecki Helicopter, Vertol</a>, and <a href="/wiki/Boeing_Rotorcraft_Systems" title="Boeing Rotorcraft Systems">Boeing Rotorcraft Systems</a> model numbers</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Piasecki_PV-1&action=edit&redlink=1" class="new" title="Piasecki PV-1 (page does not exist)">1</a></li> <li><a href="/wiki/Piasecki_PV-2" title="Piasecki PV-2">2</a></li> <li><a href="/wiki/Piasecki_HRP_Rescuer" title="Piasecki HRP Rescuer">3</a></li> <li><a href="/w/index.php?title=Piasecki_PV-11&action=edit&redlink=1" class="new" title="Piasecki PV-11 (page does not exist)">11</a></li> <li><a href="/wiki/Piasecki_HUP_Retriever" title="Piasecki HUP Retriever">12</a></li> <li><a href="/wiki/Piasecki_HUP_Retriever" title="Piasecki HUP Retriever">14</a></li> <li><a href="/wiki/Piasecki_H-16_Transporter" title="Piasecki H-16 Transporter">15</a></li> <li><a href="/wiki/Piasecki_HRP_Rescuer" title="Piasecki HRP Rescuer">17</a></li> <li><a href="/wiki/Piasecki_HUP_Retriever" title="Piasecki HUP Retriever">18</a></li> <li><a href="/wiki/Piasecki_H-21" title="Piasecki H-21">21</a></li> <li><a href="/wiki/Piasecki_H-21" title="Piasecki H-21">22</a></li> <li><a href="/w/index.php?title=Piasecki_PH-26&action=edit&redlink=1" class="new" title="Piasecki PH-26 (page does not exist)">26</a></li> <li><a href="/w/index.php?title=Piasecki_PH-29&action=edit&redlink=1" class="new" title="Piasecki PH-29 (page does not exist)">29</a></li> <li><a href="/w/index.php?title=Piasecki_PH-32&action=edit&redlink=1" class="new" title="Piasecki PH-32 (page does not exist)">32</a></li> <li><a href="/w/index.php?title=Piasecki_PH-34&action=edit&redlink=1" class="new" title="Piasecki PH-34 (page does not exist)">34</a></li> <li><a href="/wiki/Piasecki_H-21" title="Piasecki H-21">42</a></li> <li><a href="/wiki/Piasecki_H-21" title="Piasecki H-21">43</a></li> <li><a href="/wiki/Piasecki_H-21" title="Piasecki H-21">44</a></li> <li><a href="/wiki/Piasecki_H-16_Transporter" title="Piasecki H-16 Transporter">45</a></li> <li><a href="/w/index.php?title=Piasecki_PH-47&action=edit&redlink=1" class="new" title="Piasecki PH-47 (page does not exist)">47</a></li> <li><a href="/w/index.php?title=Piasecki_PH-49&action=edit&redlink=1" class="new" title="Piasecki PH-49 (page does not exist)">49</a></li> <li><a href="/w/index.php?title=Piasecki_PH-51&action=edit&redlink=1" class="new" title="Piasecki PH-51 (page does not exist)">51</a></li> <li><a href="/wiki/Piasecki_HUP_Retriever" title="Piasecki HUP Retriever">63</a></li> <li><a href="/wiki/Piasecki_H-21" title="Piasecki H-21">71</a></li> <li><a href="/wiki/Vertol_VZ-2" title="Vertol VZ-2">76</a></li> <li><a href="/w/index.php?title=Vertol_V-82&action=edit&redlink=1" class="new" title="Vertol V-82 (page does not exist)">82</a></li> <li><a href="/w/index.php?title=Vertol_V-90&action=edit&redlink=1" class="new" title="Vertol V-90 (page does not exist)">90</a></li> <li><a href="/wiki/Piasecki_H-21" title="Piasecki H-21">105</a></li> <li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">107</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">114</a></li> <li><a href="/w/index.php?title=Vertol_V-119&action=edit&redlink=1" class="new" title="Vertol V-119 (page does not exist)">119</a></li> <li><a href="/w/index.php?title=Vertol_V-129&action=edit&redlink=1" class="new" title="Vertol V-129 (page does not exist)">129</a></li> <li><a href="/w/index.php?title=Vertol_V-137&action=edit&redlink=1" class="new" title="Vertol V-137 (page does not exist)">137</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">141</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">143</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">145</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-147&action=edit&redlink=1" class="new" title="Boeing Vertol BV-147 (page does not exist)">147</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-150&action=edit&redlink=1" class="new" title="Boeing Vertol BV-150 (page does not exist)">150</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-157&action=edit&redlink=1" class="new" title="Boeing Vertol BV-157 (page does not exist)">157</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-160&action=edit&redlink=1" class="new" title="Boeing Vertol BV-160 (page does not exist)">160</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">165</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-166&action=edit&redlink=1" class="new" title="Boeing Vertol BV-166 (page does not exist)">166</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-167&action=edit&redlink=1" class="new" title="Boeing Vertol BV-167 (page does not exist)">167</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">173</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">176</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-177&action=edit&redlink=1" class="new" title="Boeing Vertol BV-177 (page does not exist)">177</a></li> <li><a href="/wiki/Boeing_Vertol_YUH-61" title="Boeing Vertol YUH-61">179</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-180&action=edit&redlink=1" class="new" title="Boeing Vertol BV-180 (page does not exist)">180</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-210&action=edit&redlink=1" class="new" title="Boeing Vertol BV-210 (page does not exist)">210</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-213&action=edit&redlink=1" class="new" title="Boeing Vertol BV-213 (page does not exist)">213</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-215&action=edit&redlink=1" class="new" title="Boeing Vertol BV-215 (page does not exist)">215</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">216</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">219</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-222&action=edit&redlink=1" class="new" title="Boeing Vertol BV-222 (page does not exist)">222</a></li> <li><a class="mw-selflink selflink">227</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">234</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-235&action=edit&redlink=1" class="new" title="Boeing Vertol BV-235 (page does not exist)">235</a></li> <li><a class="mw-selflink selflink">237</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-297&action=edit&redlink=1" class="new" title="Boeing Vertol BV-297 (page does not exist)">297</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-298&action=edit&redlink=1" class="new" title="Boeing Vertol BV-298 (page does not exist)">298</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-299&action=edit&redlink=1" class="new" title="Boeing Vertol BV-299 (page does not exist)">299</a></li> <li><a class="mw-selflink selflink">301</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-307&action=edit&redlink=1" class="new" title="Boeing Vertol BV-307 (page does not exist)">307</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">308</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">309</a></li> <li><a href="/w/index.php?title=Boeing_Vertol_BV-340&action=edit&redlink=1" class="new" title="Boeing Vertol BV-340 (page does not exist)">340</a></li> <li><a href="/wiki/Boeing_Vertol_BV-347" title="Boeing Vertol BV-347">347</a></li> <li><a href="/wiki/Boeing_Chinook_(UK_variants)" title="Boeing Chinook (UK variants)">352</a></li> <li><a href="/wiki/Boeing_Model_360" title="Boeing Model 360">360</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">414</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Boeing_Vertol/Boeing_Helicopters/Boeing_Rotorcraft" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Boeing_rotorcraft" title="Template:Boeing rotorcraft"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Boeing_rotorcraft" title="Template talk:Boeing rotorcraft"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Boeing_rotorcraft" title="Special:EditPage/Template:Boeing rotorcraft"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Boeing_Vertol/Boeing_Helicopters/Boeing_Rotorcraft" style="font-size:114%;margin:0 4em"><a href="/wiki/Boeing_Rotorcraft_Systems" title="Boeing Rotorcraft Systems">Boeing Vertol/Boeing Helicopters/Boeing Rotorcraft</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Transport rotorcraft</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">CH-46/BV-107 Sea Knight</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">CH-47/Model 234 Chinook</a>/<a href="/wiki/Boeing_Chinook_(UK_variants)" title="Boeing Chinook (UK variants)">Chinook (UK)</a></li> <li><a href="/wiki/Boeing_Vertol_BV-347" title="Boeing Vertol BV-347">BV-347</a></li> <li><a href="/wiki/Boeing_Model_360" title="Boeing Model 360">Model 360</a></li> <li><a href="/wiki/Boeing_Vertol_YUH-61" title="Boeing Vertol YUH-61">YUH-61 (Model 179)</a></li> <li><a class="mw-selflink selflink">XCH-62 (Model 301)</a></li> <li><a href="/wiki/Bell_Boeing_V-22_Osprey" title="Bell Boeing V-22 Osprey">V-22 Osprey</a></li> <li><a href="/wiki/Sikorsky%E2%80%93Boeing_SB-1_Defiant" title="Sikorsky–Boeing SB-1 Defiant">SB-1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Attack/reconnaissance helicopters</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">ACH-47A</a></li> <li><a href="/wiki/Boeing_AH-64_Apache" title="Boeing AH-64 Apache">AH-64 Apache</a>/<a href="/wiki/AgustaWestland_Apache" title="AgustaWestland Apache">WAH-64 Apache</a></li> <li><a href="/wiki/Boeing%E2%80%93Sikorsky_RAH-66_Comanche" title="Boeing–Sikorsky RAH-66 Comanche">RAH-66 Comanche</a></li> <li><a href="/wiki/Boeing_AH-6" title="Boeing AH-6">MELB/AH-6</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="United_States_helicopter_designations,_Army/Air_Force_and_Tri-Service_systems" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:US_helicopters" title="Template:US helicopters"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:US_helicopters" title="Template talk:US helicopters"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:US_helicopters" title="Special:EditPage/Template:US helicopters"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="United_States_helicopter_designations,_Army/Air_Force_and_Tri-Service_systems" style="font-size:114%;margin:0 4em">United States <a href="/wiki/Helicopter" title="Helicopter">helicopter</a> designations, Army/Air Force and <a href="/wiki/1962_United_States_Tri-Service_aircraft_designation_system" title="1962 United States Tri-Service aircraft designation system">Tri-Service</a> systems</div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div>Numerical sequence used by USAAC/USAAF/USAF 1941–present; <a href="/wiki/United_States_Army" title="United States Army">U.S. Army</a> 1948–1956 and 1962–present; <a href="/wiki/United_States_Navy" title="United States Navy">U.S. Navy</a> 1962–present</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Army/Air Force sequence<br />(1941–1962)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Prefix R-, 1941–1948</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Platt-LePage_XR-1" title="Platt-LePage XR-1">R-1</a></li> <li><a href="/wiki/Kellett_KD-1" title="Kellett KD-1">R-2</a></li> <li><a href="/wiki/Kellett_KD-1" title="Kellett KD-1">R-3</a></li> <li><a href="/wiki/Sikorsky_R-4" title="Sikorsky R-4">R-4</a></li> <li><a href="/wiki/Sikorsky_H-5" title="Sikorsky H-5">R-5</a></li> <li><a href="/wiki/Sikorsky_R-6" title="Sikorsky R-6">R-6</a></li> <li><a href="/wiki/Sikorsky_R-6" title="Sikorsky R-6">R-7</a></li> <li><a href="/wiki/Kellett_XR-8" title="Kellett XR-8">R-8</a></li> <li><a href="/wiki/Firestone_XR-9" title="Firestone XR-9">R-9</a></li> <li><a href="/wiki/Kellett_XR-10" title="Kellett XR-10">R-10</a></li> <li><a href="/wiki/Rotorcraft_XR-11" title="Rotorcraft XR-11">R-11</a></li> <li><a href="/wiki/Bell_H-12" title="Bell H-12">R-12</a></li> <li><a href="/wiki/Bell_H-13_Sioux" title="Bell H-13 Sioux">R-13</a></li> <li><a href="/wiki/Firestone_XR-14" title="Firestone XR-14">R-14</a></li> <li><a href="/wiki/Bell_XH-15" title="Bell XH-15">R-15</a></li> <li><a href="/wiki/Piasecki_H-16_Transporter" title="Piasecki H-16 Transporter">R-16</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Prefix H-, 1948–1962</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sikorsky_H-5" title="Sikorsky H-5">H-5</a></li> <li><a href="/wiki/Sikorsky_R-6" title="Sikorsky R-6">H-6</a></li> <li><a href="/wiki/Firestone_XR-9" title="Firestone XR-9">H-9</a></li> <li><a href="/wiki/Kellett_XR-10" title="Kellett XR-10">H-10</a></li> <li><a href="/wiki/Rotorcraft_XR-11" title="Rotorcraft XR-11">H-11</a></li> <li><a href="/wiki/Bell_H-12" title="Bell H-12">H-12</a></li> <li><a href="/wiki/Bell_H-13_Sioux" title="Bell H-13 Sioux">H-13</a> <ul><li><a href="/wiki/Bell_47J_Ranger" title="Bell 47J Ranger">H-13J</a></li></ul></li> <li><a href="/wiki/Bell_XH-15" title="Bell XH-15">H-15</a></li> <li><a href="/wiki/Piasecki_H-16_Transporter" title="Piasecki H-16 Transporter">H-16</a></li> <li><a href="/wiki/Hughes_XH-17" title="Hughes XH-17">H-17</a></li> <li><a href="/wiki/Sikorsky_S-52" title="Sikorsky S-52">H-18</a></li> <li><a href="/wiki/Sikorsky_H-19_Chickasaw" title="Sikorsky H-19 Chickasaw">H-19</a></li> <li><a href="/wiki/McDonnell_XH-20_Little_Henry" title="McDonnell XH-20 Little Henry">H-20</a></li> <li><a href="/wiki/Piasecki_H-21" title="Piasecki H-21">H-21</a></li> <li><a href="/wiki/Kaman_K-225" title="Kaman K-225">H-22</a></li> <li><a href="/wiki/Hiller_OH-23_Raven" title="Hiller OH-23 Raven">H-23</a></li> <li><a href="/wiki/Seibel_S-4" title="Seibel S-4">H-24</a></li> <li><a href="/wiki/Piasecki_HUP_Retriever" title="Piasecki HUP Retriever">H-25</a></li> <li><a href="/wiki/American_Helicopter_XH-26_Jet_Jeep" title="American Helicopter XH-26 Jet Jeep">H-26</a></li> <li><a href="/wiki/Piasecki_H-16_Transporter" title="Piasecki H-16 Transporter">H-27</a></li> <li><a href="/wiki/Hughes_XH-17" title="Hughes XH-17">H-28</a></li> <li><a href="/wiki/McDonnell_XH-20_Little_Henry" title="McDonnell XH-20 Little Henry">H-29</a></li> <li><a href="/wiki/McCulloch_MC-4" title="McCulloch MC-4">H-30</a></li> <li><a href="/wiki/Doman_LZ-5" title="Doman LZ-5">H-31</a></li> <li><a href="/wiki/Hiller_YH-32_Hornet" title="Hiller YH-32 Hornet">H-32</a></li> <li><a href="/wiki/Bell_XV-3" title="Bell XV-3">H-33</a></li> <li><a href="/wiki/Sikorsky_H-34" title="Sikorsky H-34">H-34</a></li> <li><a href="/wiki/McDonnell_XV-1" title="McDonnell XV-1">H-35</a></li> <li><span class="tmp-color" style="color:grey">H-36</span><sup><small>1</small></sup></li> <li><a href="/wiki/Sikorsky_CH-37_Mojave" title="Sikorsky CH-37 Mojave">H-37</a></li> <li><span class="tmp-color" style="color:grey">H-38</span><sup><small>1</small></sup></li> <li><a href="/wiki/Sikorsky_XH-39" title="Sikorsky XH-39">H-39</a></li> <li><a href="/wiki/Bell_UH-1_Iroquois" title="Bell UH-1 Iroquois">H-40</a></li> <li><a href="/wiki/Cessna_CH-1_Skyhook" title="Cessna CH-1 Skyhook">H-41</a></li> <li><a href="/wiki/Hughes_TH-55_Osage" title="Hughes TH-55 Osage">H-42</a></li> <li><a href="/wiki/Kaman_HH-43_Huskie" title="Kaman HH-43 Huskie">H-43</a></li> <li><span class="tmp-color" style="color:grey">H-44</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">H-45</span><sup><small>1</small></sup></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/1962_United_States_Tri-Service_aircraft_designation_system" title="1962 United States Tri-Service aircraft designation system">Tri-Service sequence</a><br />(1962–present)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">1962 redesignations</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_H-13_Sioux" title="Bell H-13 Sioux">H-13</a> <ul><li><a href="/wiki/Bell_201" title="Bell 201">H-13F</a></li> <li><a href="/wiki/Bell_47J_Ranger" title="Bell 47J Ranger">H-13J</a></li></ul></li> <li><a href="/wiki/Sikorsky_H-19_Chickasaw" title="Sikorsky H-19 Chickasaw">H-19</a></li> <li><a href="/wiki/Piasecki_H-21" title="Piasecki H-21">H-21</a></li> <li><a href="/wiki/Hiller_OH-23_Raven" title="Hiller OH-23 Raven">H-23</a></li> <li><a href="/wiki/Piasecki_HUP_Retriever" title="Piasecki HUP Retriever">H-25</a></li> <li><a href="/wiki/Sikorsky_H-34" title="Sikorsky H-34">H-34</a></li> <li><a href="/wiki/Sikorsky_CH-37_Mojave" title="Sikorsky CH-37 Mojave">H-37</a></li> <li><a href="/wiki/Kaman_HH-43_Huskie" title="Kaman HH-43 Huskie">H-43</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">New designations</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">H-46</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">H-47</a></li> <li><a href="/wiki/Bell_UH-1_Iroquois" title="Bell UH-1 Iroquois">H-48</a></li> <li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">H-49</a></li> <li><a href="/wiki/Gyrodyne_QH-50_DASH" title="Gyrodyne QH-50 DASH">H-50</a></li> <li><a href="/wiki/Lockheed_XH-51" title="Lockheed XH-51">H-51</a></li> <li><a href="/wiki/Sikorsky_HH-52_Seaguard" title="Sikorsky HH-52 Seaguard">H-52</a></li> <li>H-53 <ul><li><a href="/wiki/Sikorsky_CH-53_Sea_Stallion" title="Sikorsky CH-53 Sea Stallion">CH-53</a>/<a href="/wiki/Sikorsky_CH-53E_Super_Stallion" title="Sikorsky CH-53E Super Stallion">E</a>/<a href="/wiki/Sikorsky_CH-53K_King_Stallion" title="Sikorsky CH-53K King Stallion">K</a></li> <li><a href="/wiki/Sikorsky_MH-53" title="Sikorsky MH-53">HH-53/MH-53</a></li></ul></li> <li><a href="/wiki/Sikorsky_CH-54_Tarhe" title="Sikorsky CH-54 Tarhe">H-54</a></li> <li><a href="/wiki/Hughes_TH-55_Osage" title="Hughes TH-55 Osage">H-55</a></li> <li><a href="/wiki/Lockheed_AH-56_Cheyenne" title="Lockheed AH-56 Cheyenne">H-56</a></li> <li><a href="/wiki/Bell_206" title="Bell 206">H-57</a></li> <li><a href="/wiki/Bell_OH-58_Kiowa" title="Bell OH-58 Kiowa">H-58</a></li> <li><a href="/wiki/Sikorsky_S-69" title="Sikorsky S-69">H-59</a></li> <li>H-60 <ul><li><a href="/wiki/Sikorsky_UH-60_Black_Hawk" title="Sikorsky UH-60 Black Hawk">UH-60</a></li> <li><a href="/wiki/Sikorsky_SH-60_Seahawk" title="Sikorsky SH-60 Seahawk">SH-60</a></li> <li><a href="/wiki/Sikorsky_HH-60_Pave_Hawk" title="Sikorsky HH-60 Pave Hawk">HH-60</a></li> <li><a href="/wiki/Sikorsky_MH-60_Jayhawk" title="Sikorsky MH-60 Jayhawk">MH-60</a></li></ul></li> <li><a href="/wiki/Boeing_Vertol_YUH-61" title="Boeing Vertol YUH-61">H-61</a></li> <li><a class="mw-selflink selflink">H-62</a></li> <li><a href="/wiki/Bell_YAH-63" title="Bell YAH-63">H-63</a></li> <li><a href="/wiki/Boeing_AH-64_Apache" title="Boeing AH-64 Apache">H-64</a></li> <li><a href="/wiki/Eurocopter_MH-65_Dolphin" title="Eurocopter MH-65 Dolphin">H-65</a></li> <li><a href="/wiki/Boeing%E2%80%93Sikorsky_RAH-66_Comanche" title="Boeing–Sikorsky RAH-66 Comanche">H-66</a></li> <li><a href="/wiki/Bell_206" title="Bell 206">H-67</a></li> <li><a href="/wiki/AgustaWestland_AW109" title="AgustaWestland AW109">H-68</a></li> <li><span class="tmp-color" style="color:grey">H-69</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_ARH-70_Arapaho" title="Bell ARH-70 Arapaho">H-70</a></li> <li><a href="/wiki/Lockheed_Martin_VH-71_Kestrel" title="Lockheed Martin VH-71 Kestrel">H-71</a></li> <li><a href="/wiki/Eurocopter_UH-72_Lakota" title="Eurocopter UH-72 Lakota">H-72</a></li> <li><a href="/wiki/AgustaWestland_AW119_Koala" title="AgustaWestland AW119 Koala">H-73</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Alternate sequence</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_Huey_family" title="Bell Huey family">H-1</a> <ul><li><a href="/wiki/Bell_AH-1_Cobra" title="Bell AH-1 Cobra">AH-1</a>/<a href="/wiki/Bell_AH-1_SuperCobra" title="Bell AH-1 SuperCobra">J/T/W</a>/<a href="/wiki/Bell_AH-1Z_Viper" title="Bell AH-1Z Viper">Z</a></li> <li><a href="/wiki/Bell_UH-1_Iroquois" title="Bell UH-1 Iroquois">UH-1</a>/<a href="/wiki/Bell_UH-1N_Twin_Huey" title="Bell UH-1N Twin Huey">N</a>/<a href="/wiki/Bell_UH-1Y_Venom" title="Bell UH-1Y Venom">Y</a></li></ul></li> <li><a href="/wiki/Kaman_SH-2_Seasprite" title="Kaman SH-2 Seasprite">H-2</a> <ul><li><a href="/wiki/Kaman_SH-2G_Super_Seasprite" title="Kaman SH-2G Super Seasprite">G</a></li></ul></li> <li>H-3 <ul><li><a href="/wiki/Sikorsky_S-61R" title="Sikorsky S-61R">CH-3/HH-3</a></li> <li><a href="/wiki/Sikorsky_SH-3_Sea_King" title="Sikorsky SH-3 Sea King">SH-3</a></li></ul></li> <li><a href="/wiki/Bell_YOH-4" title="Bell YOH-4">H-4</a></li> <li><a href="/wiki/Fairchild_Hiller_FH-1100" title="Fairchild Hiller FH-1100">H-5</a></li> <li>H-6 <ul><li><a href="/wiki/Boeing_AH-6" title="Boeing AH-6">AH-6</a></li> <li><a href="/wiki/MD_Helicopters_MH-6_Little_Bird" title="MD Helicopters MH-6 Little Bird">MH-6</a></li> <li><a href="/wiki/Hughes_OH-6_Cayuse" title="Hughes OH-6 Cayuse">OH-6</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Non-sequential</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MD_Helicopters_MD_Explorer" title="MD Helicopters MD Explorer">H-90</a></li> <li><a href="/wiki/Sikorsky_S-92" title="Sikorsky S-92">H-92</a> <ul><li><a href="/wiki/Sikorsky_VH-92_Patriot" title="Sikorsky VH-92 Patriot">CH-92/VH-92</a></li></ul></li> <li><a href="/wiki/Boeing_MH-139_Grey_Wolf" title="Boeing MH-139 Grey Wolf">H-139</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><sup>1</sup> Not assigned</div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Boeing_Vertol_XCH-62&oldid=1256959194">https://en.wikipedia.org/w/index.php?title=Boeing_Vertol_XCH-62&oldid=1256959194</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Boeing_aircraft" title="Category:Boeing aircraft">Boeing aircraft</a></li><li><a href="/wiki/Category:United_States_military_helicopters" title="Category:United States military helicopters">United States military helicopters</a></li><li><a href="/wiki/Category:1970s_United_States_helicopters" title="Category:1970s United States helicopters">1970s United States helicopters</a></li><li><a href="/wiki/Category:Tandem_rotor_helicopters" title="Category:Tandem rotor helicopters">Tandem rotor helicopters</a></li><li><a href="/wiki/Category:Cancelled_military_aircraft_projects_of_the_United_States" title="Category:Cancelled military aircraft projects of the United States">Cancelled military aircraft projects of the United States</a></li><li><a href="/wiki/Category:Three-turbine_helicopters" title="Category:Three-turbine helicopters">Three-turbine helicopters</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_is_different_from_Wikidata" title="Category:Short description is different from Wikidata">Short description is different from Wikidata</a></li><li><a href="/wiki/Category:Commons_category_link_is_on_Wikidata" title="Category:Commons category link is on Wikidata">Commons category link is on Wikidata</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 12 November 2024, at 12:41<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. By using this site, you agree to the <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use" class="extiw" title="foundation:Special:MyLanguage/Policy:Terms of Use">Terms of Use</a> and <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy" class="extiw" title="foundation:Special:MyLanguage/Policy:Privacy policy">Privacy Policy</a>. Wikipedia® is a registered trademark of the <a rel="nofollow" class="external text" href="https://wikimediafoundation.org/">Wikimedia Foundation, Inc.</a>, a non-profit organization.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:About">About Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers</a></li> <li id="footer-places-contact"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//en.m.wikipedia.org/w/index.php?title=Boeing_Vertol_XCH-62&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-z27g8","wgBackendResponseTime":213,"wgPageParseReport":{"limitreport":{"cputime":"0.702","walltime":"0.798","ppvisitednodes":{"value":6120,"limit":1000000},"postexpandincludesize":{"value":123748,"limit":2097152},"templateargumentsize":{"value":5867,"limit":2097152},"expansiondepth":{"value":18,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":104805,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 715.046 1 -total"," 27.50% 196.633 1 Template:Reflist"," 20.49% 146.520 7 Template:Navbox"," 13.44% 96.071 1 Template:CH-47_Chinook_family"," 11.99% 85.709 2 Template:Cite_web"," 9.48% 67.820 1 Template:Aircraft_specs"," 8.25% 59.002 4 Template:R"," 8.23% 58.868 1 Template:Infobox_aircraft"," 8.19% 58.542 1 Template:Short_description"," 7.84% 56.075 1 Template:Infobox"]},"scribunto":{"limitreport-timeusage":{"value":"0.380","limit":"10.000"},"limitreport-memusage":{"value":7890366,"limit":52428800}},"cachereport":{"origin":"mw-api-ext.codfw.main-7556f8b5dd-sgrqq","timestamp":"20241122154954","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Boeing Vertol XCH-62","url":"https:\/\/en.wikipedia.org\/wiki\/Boeing_Vertol_XCH-62","sameAs":"http:\/\/www.wikidata.org\/entity\/Q3641559","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q3641559","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2007-05-23T16:55:31Z","dateModified":"2024-11-12T12:41:18Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/a\/a2\/Boeing_XCH-62.jpg","headline":"experimental heavy-lift helicopter by Boeing Vertol"}</script> </body> </html>