Diameter of flight instrument - General Discussion

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I would like to know the diameters of the analog on-board instruments, such as the artificial horizon, anemometer and tachometer, found on airliners of the 60's, such as the Vickers Viscount. Are there standard dimensions ? Thanks in advance! Clement"> <meta property="og:description" content="Hello everyone ! I would like to know the diameters of the analog on-board instruments, such as the artificial horizon, anemometer and tachometer, found on airliners of the 60's, such as the Vickers Viscount. Are there standard dimensions ? Thanks in advance! 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title="47 posts" data-ipsTooltip class="ipsType_blendLinks"> <i class="fa fa-comment"></i> 47 </a> </li> </ul> </li> <li data-role='custom-field' class='ipsResponsive_hidePhone ipsType_break'>  </li> <li data-role='custom-field' class='ipsResponsive_hidePhone ipsType_break'> <span class='ft'>Location:</span><span class='fc'>France</span> </li> <li data-role='custom-field' class='ipsResponsive_hidePhone ipsType_break'> <span class="ft">OS:</span><span class="fc">Windows</span> </li> <li data-role='custom-field' class='ipsResponsive_hidePhone ipsType_break'> <span class="ft">X-Plane user since :</span><span class="fc">v11</span> </li> <li data-role='custom-field' class='ipsResponsive_hidePhone ipsType_break'> <strong>Experience:</strong> Student Pilot </li> </ul> </aside> <div class='ipsColumn ipsColumn_fluid ipsMargin:none'> <div id='comment-2784552_wrap' data-controller='core.front.core.comment' data-commentApp='forums' data-commentType='forums' data-commentID="2784552" data-quoteData='{"userid":1104995,"username":"MiraNordlys","timestamp":1728584365,"contentapp":"forums","contenttype":"forums","contentid":318578,"contentclass":"forums_Topic","contentcommentid":2784552}' class='ipsComment_content ipsType_medium'> <div class='ipsComment_meta ipsType_light ipsFlex ipsFlex-ai:center ipsFlex-jc:between ipsFlex-fd:row-reverse'> <div class='ipsType_light ipsType_reset ipsType_blendLinks ipsComment_toolWrap'> <div class='ipsResponsive_hidePhone ipsComment_badges'> <ul class='ipsList_reset ipsFlex ipsFlex-jc:end ipsFlex-fw:wrap ipsGap:2 ipsGap_row:1'> </ul> </div> <ul class='ipsList_reset ipsComment_tools'> <li> <a href='#elControls_2784552_menu' class='ipsComment_ellipsis' id='elControls_2784552' title='More options...' data-ipsMenu data-ipsMenu-appendTo='#comment-2784552_wrap'><i class='fa fa-ellipsis-h'></i></a> <ul id='elControls_2784552_menu' class='ipsMenu ipsMenu_narrow ipsHide'> </ul> </li> </ul> </div> <div class='ipsType_reset ipsResponsive_hidePhone'> Posted <time datetime='2024-10-10T18:19:25Z' title='10/10/2024 06:19 PM' data-short='Oct 10'>October 10, 2024</time> <span class='ipsResponsive_hidePhone'> </span> </div> </div> <div class='cPost_contentWrap'> <div data-role='commentContent' class='ipsType_normal ipsType_richText ipsPadding_bottom ipsContained' data-controller='core.front.core.lightboxedImages'> <p> Hello everyone </p> <p> ! I would like to know the diameters of the analog on-board instruments, such as the artificial horizon, anemometer and tachometer, found on airliners of the 60's, such as the Vickers Viscount. 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</aside> <div class='ipsColumn ipsColumn_fluid ipsMargin:none'> <div id='comment-2787781_wrap' data-controller='core.front.core.comment' data-commentApp='forums' data-commentType='forums' data-commentID="2787781" data-quoteData='{"userid":725042,"username":"circlemanski","timestamp":1729091136,"contentapp":"forums","contenttype":"forums","contentid":318578,"contentclass":"forums_Topic","contentcommentid":2787781}' class='ipsComment_content ipsType_medium'> <div class='ipsComment_meta ipsType_light ipsFlex ipsFlex-ai:center ipsFlex-jc:between ipsFlex-fd:row-reverse'> <div class='ipsType_light ipsType_reset ipsType_blendLinks ipsComment_toolWrap'> <div class='ipsResponsive_hidePhone ipsComment_badges'> <ul class='ipsList_reset ipsFlex ipsFlex-jc:end ipsFlex-fw:wrap ipsGap:2 ipsGap_row:1'> </ul> </div> <ul class='ipsList_reset ipsComment_tools'> <li> <a href='#elControls_2787781_menu' class='ipsComment_ellipsis' id='elControls_2787781' title='More options...' data-ipsMenu data-ipsMenu-appendTo='#comment-2787781_wrap'><i class='fa fa-ellipsis-h'></i></a> <ul id='elControls_2787781_menu' class='ipsMenu ipsMenu_narrow ipsHide'> </ul> </li> </ul> </div> <div class='ipsType_reset ipsResponsive_hidePhone'> Posted <time datetime='2024-10-16T15:05:36Z' title='10/16/2024 03:05 PM' data-short='Oct 16'>October 16, 2024</time> <span class='ipsResponsive_hidePhone'> (edited) </span> </div> </div> <div class='cPost_contentWrap'> <div data-role='commentContent' class='ipsType_normal ipsType_richText ipsPadding_bottom ipsContained' data-controller='core.front.core.lightboxedImages'> <p> No good answer for you...My exerience in a museum restoration of the viscount cockpit was very instructive, it was much more complex than the dc3, but not bigger.聽 </p> <p> Suggest you try pprune forums, plenty of former viscount pilots there! </p> <p> <a href="https://www.pprune.org/aviation-history-nostalgia-86/" rel="external nofollow">https://www.pprune.org/aviation-history-nostalgia-86/</a> </p> <p> FWIW, USAAF manuals show 1940s instruments for engine rpm, manifold and oil pressure measure about 3.5 inches.聽 </p> <p> In the american viscounts, the collins HSI shows as larger than the surrounding gauges. </p> <p> This great film from collins shows the action around the hsi :- )聽 </p> <div class="ipsEmbeddedVideo" contenteditable="false"> <div> <iframe allowfullscreen="" frameborder="0" height="150" title="Collins Aerospace 1950s, Capital Airlines, Vickers Viscount film" width="200" data-embed-src="https://www.youtube-nocookie.com/embed/ExcVSmJw6QI?start=311&feature=oembed"></iframe> </div> </div> <p> 聽 </p> <p> 聽 </p> <p> 聽 </p> <span class='ipsType_reset ipsType_medium ipsType_light' data-excludequote> <strong>Edited <time datetime='2024-10-16T15:08:35Z' title='10/16/2024 03:08 PM' data-short='Oct 16'>October 16, 2024</time> by circlemanski</strong> <br>Spellin' </span> </div> <div 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I would like to know the diameters of the analog on-board instruments, such as the artificial horizon, anemometer and tachometer, found on airliners of the 60\u0027s, such as the Vickers Viscount. Are there standard dimensions ? \n\tThanks in advance!\n \n\n\n\tClement\n \n", "dateCreated": "2024-10-10T18:19:25+0000", "datePublished": "2024-10-10T18:19:25+0000", "dateModified": "2024-10-16T15:05:36+0000", "image": "https://forums.x-plane.org/uploads/monthly_2024_09/1727552219669(1).thumb.png.9fadb4d1deda6ceea12ea3a209d0462c.png", "author": { "@type": "Person", "name": "MiraNordlys", "image": "https://forums.x-plane.org/uploads/monthly_2024_09/1727552219669(1).thumb.png.9fadb4d1deda6ceea12ea3a209d0462c.png", "url": "https://forums.x-plane.org/index.php?/profile/1104995-miranordlys/" }, "interactionStatistic": [ { "@type": "InteractionCounter", "interactionType": "http://schema.org/ViewAction", "userInteractionCount": 110 }, { "@type": "InteractionCounter", "interactionType": "http://schema.org/CommentAction", "userInteractionCount": 1 }, { "@type": "InteractionCounter", "interactionType": "http://schema.org/FollowAction", "userInteractionCount": 0 } ], "@context": "http://schema.org", "@type": "DiscussionForumPosting", "@id": "https://forums.x-plane.org/index.php?/forums/topic/318578-diameter-of-flight-instrument/", "isPartOf": { "@id": "https://forums.x-plane.org/#website" }, "publisher": { "@id": "https://forums.x-plane.org/#organization", "member": { "@type": "Person", "name": "MiraNordlys", "image": "https://forums.x-plane.org/uploads/monthly_2024_09/1727552219669(1).thumb.png.9fadb4d1deda6ceea12ea3a209d0462c.png", "url": "https://forums.x-plane.org/index.php?/profile/1104995-miranordlys/" } }, "url": "https://forums.x-plane.org/index.php?/forums/topic/318578-diameter-of-flight-instrument/", "discussionUrl": "https://forums.x-plane.org/index.php?/forums/topic/318578-diameter-of-flight-instrument/", "mainEntityOfPage": { "@type": "WebPage", "@id": "https://forums.x-plane.org/index.php?/forums/topic/318578-diameter-of-flight-instrument/" }, "pageStart": 1, "pageEnd": 1, "comment": [ { "@type": "Comment", "@id": "https://forums.x-plane.org/index.php?/forums/topic/318578-diameter-of-flight-instrument/#comment-2787781", "url": "https://forums.x-plane.org/index.php?/forums/topic/318578-diameter-of-flight-instrument/#comment-2787781", "author": { "@type": "Person", "name": "circlemanski", "image": "https://forums.x-plane.org/uploads/monthly_2019_02/icon_kaffee.thumb.png.2aaa3b431feb8b96fae6d15cb3c0dd34.png", "url": "https://forums.x-plane.org/index.php?/profile/725042-circlemanski/" }, "dateCreated": "2024-10-16T15:05:36+0000", "text": "No good answer for you...My exerience in a museum restoration of the viscount cockpit was very instructive, it was much more complex than the dc3, but not bigger.\u00a0\n \n\n\n\tSuggest you try pprune forums, plenty of former viscount pilots there!\n \n\n\n\thttps://www.pprune.org/aviation-history-nostalgia-86/\n \n\n\n\tFWIW, USAAF manuals show 1940s instruments for engine rpm, manifold and oil pressure measure about 3.5 inches.\u00a0\n \n\n\n\tIn the american viscounts, the collins HSI shows as larger than the surrounding gauges.\n \n\n\n\tThis great film from collins shows the action around the hsi :- )\u00a0\n \n\n\n\t\n\t\t\n\t\n\n\n\n\t\u00a0\n \n\n\n\t\u00a0\n \n\n\n\t\u00a0\n \n", "upvoteCount": 1 } ] } </script> <script type='application/ld+json'> { "@context": "http://www.schema.org", "publisher": "https://forums.x-plane.org/#organization", "@type": "WebSite", "@id": "https://forums.x-plane.org/#website", "mainEntityOfPage": "https://forums.x-plane.org/", "name": "X-Plane.Org Forum", "url": "https://forums.x-plane.org/", "potentialAction": { "type": "SearchAction", "query-input": "required name=query", "target": "https://forums.x-plane.org/index.php?/search/\u0026q={query}" }, "inLanguage": [ { "@type": "Language", "name": "English (USA)", "alternateName": "en-US" } ] } </script> <script type='application/ld+json'> { "@context": "http://www.schema.org", "@type": "Organization", "@id": "https://forums.x-plane.org/#organization", 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