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href="#Dual-purpose_guns_of_the_World_Wars"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Dual-purpose guns of the World Wars</span> </div> </a> <ul id="toc-Dual-purpose_guns_of_the_World_Wars-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Submarine_deck_guns" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Submarine_deck_guns"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Submarine deck guns</span> </div> </a> <ul id="toc-Submarine_deck_guns-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Cold_War_anti-aircraft_gun" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Cold_War_anti-aircraft_gun"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Cold War anti-aircraft gun</span> </div> </a> <ul id="toc-Cold_War_anti-aircraft_gun-sublist" 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class="infobox-above hproduct" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;"><span class="fn org"> 3-inch/50 caliber gun (Mk 22) </span></th></tr><tr><td colspan="2" class="infobox-image" style="text-align:center;border-bottom:1px solid #aaa;line-height:1.5em;"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Honolulu,_HI,_USA_-_panoramio.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/37/Honolulu%2C_HI%2C_USA_-_panoramio.jpg/220px-Honolulu%2C_HI%2C_USA_-_panoramio.jpg" decoding="async" width="220" height="156" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/37/Honolulu%2C_HI%2C_USA_-_panoramio.jpg/330px-Honolulu%2C_HI%2C_USA_-_panoramio.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/37/Honolulu%2C_HI%2C_USA_-_panoramio.jpg/440px-Honolulu%2C_HI%2C_USA_-_panoramio.jpg 2x" data-file-width="3430" data-file-height="2436" /></a></span><div class="infobox-caption">Mark 22 3"/50 cal gun</div></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">Type</th><td class="infobox-data"><a href="/wiki/Naval_gun" class="mw-redirect" title="Naval gun">Naval gun</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">Place of origin</th><td class="infobox-data">United States</td></tr><tr><th colspan="2" class="infobox-header" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;">Service history</th></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">In service</th><td class="infobox-data">1900–1990 (US Navy)</td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">Used by</th><td class="infobox-data"><a href="/wiki/US_Navy" class="mw-redirect" title="US Navy">US Navy</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;">Production history</th></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">Designed</th><td class="infobox-data"> <ul><li><b>Mark 2</b>: 1898<br />* <b>Mark 10</b>: 1915<br />* <b>Mark 22</b>: 1944</li></ul> </td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">Produced</th><td class="infobox-data">1900–1948</td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">Variants</th><td class="infobox-data">Marks 2, 3, 5, 6, 8, 10, 17, 18, 19, 20, 21, and 22</td></tr><tr><th colspan="2" class="infobox-header" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;">Specifications</th></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">Mass</th><td class="infobox-data"> <ul><li><b>Mark 2</b>: 2,086 pounds (946 kg) (with breech)</li> <li><b>Mark 21</b>: 1,760 pounds (800 kg)</li></ul> </td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">Length</th><td class="infobox-data"> <ul><li><b>Mark 2</b>: 153.8 inches (3.91 m)</li> <li><b>Mark 21</b>: 159.7 inches (4.06 m)</li></ul> </td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em"><a href="/wiki/Gun_barrel" title="Gun barrel">Barrel</a> length</th><td class="infobox-data"> <ul><li><b>Mark 2</b>: 150 inches (380 cm) bore (50 <a href="/wiki/Caliber#Caliber_as_measurement_of_length" title="Caliber">calibres</a>)</li> <li><b>Mark 21</b>: 150.3 inches (382 cm) bore (50 calibres)</li></ul> </td></tr><tr><td colspan="2" class="infobox-full-data"><hr /></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em"><a href="/wiki/Shell_(projectile)" title="Shell (projectile)">Shell</a></th><td class="infobox-data">complete round: 24 lb (11 kg); projectile weight: 13 lb (5.9 kg) projectile types: <a href="/wiki/Armour-piercing_shell" class="mw-redirect" title="Armour-piercing shell">AP</a>, AA (with VT proximity fuze), HE, Illumination<sup id="cite_ref-FOOTNOTEDiGiulian,_3"/50_Marks_2–8DiGiulian,_3"/50_Marks_10–22DiGiulian,_3"/50_Marks_27–34_1-0" class="reference"><a href="#cite_note-FOOTNOTEDiGiulian,_3"/50_Marks_2–8DiGiulian,_3"/50_Marks_10–22DiGiulian,_3"/50_Marks_27–34-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em"><a href="/wiki/Caliber" title="Caliber">Caliber</a></th><td class="infobox-data">3-inch (76 mm)</td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em"><a href="/wiki/Elevation_(ballistics)" title="Elevation (ballistics)">Elevation</a></th><td class="infobox-data"> <ul><li><b>Pedestal Mount</b>: -10° to +15°</li> <li><b>AA Mount</b>: -10° to +85°</li></ul> </td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em"><a href="/wiki/Gun_laying" title="Gun laying">Traverse</a></th><td class="infobox-data">360°</td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em"><a href="/wiki/Rate_of_fire" title="Rate of fire">Rate of fire</a></th><td class="infobox-data"> <ul><li><b>Mark 2</b>: 15 – 20 rounds per minute</li> <li><b>Mark 22</b>: 45 – 50 rounds per minute with autoloader<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em"><a href="/wiki/Muzzle_velocity" title="Muzzle velocity">Muzzle velocity</a></th><td class="infobox-data">2,700 ft/s (820 m/s)</td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">Maximum firing range</th><td class="infobox-data"> <ul><li>14,600 yd (13,400 m) at 43° elevation</li> <li>30,400 ft (9,300 m) <a href="/wiki/Anti-aircraft_warfare" title="Anti-aircraft warfare">AA</a> ceiling</li></ul> </td></tr><tr><th scope="row" class="infobox-label" style="padding-right:1em">Sights</th><td class="infobox-data">Peep-site and Optical telescope</td></tr></tbody></table> <p>The <b>3-inch/50-caliber gun</b> (spoken "three-inch fifty-caliber") in United States naval gun terminology indicates the gun fired a projectile 3 inches (76 mm) in diameter, and the barrel was 50 <a href="/wiki/Caliber_(artillery)" title="Caliber (artillery)">calibers</a> long (barrel length is 3 in × 50 = 150 in or 3.8 m). Different guns (identified by Mark numbers) of this caliber were used by the <a href="/wiki/U.S._Navy" class="mw-redirect" title="U.S. Navy">U.S. Navy</a> and <a href="/wiki/U.S._Coast_Guard" class="mw-redirect" title="U.S. Coast Guard">U.S. Coast Guard</a> from 1900 through to 1990 on a variety of combatant and transport ship classes.<sup id="cite_ref-FOOTNOTEDiGiulian,_3"/50_Marks_2–8DiGiulian,_3"/50_Marks_27–34_3-0" class="reference"><a href="#cite_note-FOOTNOTEDiGiulian,_3"/50_Marks_2–8DiGiulian,_3"/50_Marks_27–34-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>The gun is still in use with the <a href="/wiki/Spanish_Navy" title="Spanish Navy">Spanish Navy</a> on <a href="/wiki/Serviola-class_patrol_boat" title="Serviola-class patrol boat"><i>Serviola</i>-class patrol boats</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Early_low-angle_guns">Early low-angle guns</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=1" title="Edit section: Early low-angle guns"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:3-inch,_50_caliber_gun,_World_War_I.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/ba/3-inch%2C_50_caliber_gun%2C_World_War_I.jpg/220px-3-inch%2C_50_caliber_gun%2C_World_War_I.jpg" decoding="async" width="220" height="150" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/ba/3-inch%2C_50_caliber_gun%2C_World_War_I.jpg/330px-3-inch%2C_50_caliber_gun%2C_World_War_I.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/ba/3-inch%2C_50_caliber_gun%2C_World_War_I.jpg/440px-3-inch%2C_50_caliber_gun%2C_World_War_I.jpg 2x" data-file-width="739" data-file-height="505" /></a><figcaption>An early 3"/50 on <a href="/wiki/USS_Rambler" title="USS Rambler">USS <i>Rambler</i> (SP-211)</a>, 1918.</figcaption></figure> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:USSPivot3inchFiring.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e7/USSPivot3inchFiring.jpg/220px-USSPivot3inchFiring.jpg" decoding="async" width="220" height="145" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e7/USSPivot3inchFiring.jpg/330px-USSPivot3inchFiring.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e7/USSPivot3inchFiring.jpg/440px-USSPivot3inchFiring.jpg 2x" data-file-width="680" data-file-height="448" /></a><figcaption><a href="/wiki/USS_Pivot_(AM-276)" title="USS Pivot (AM-276)">USS <i>Pivot</i></a> firing its forward 3"/50-caliber gun.</figcaption></figure> <p>The US Navy's first 3 inch /50-caliber gun (Mark 2) was an early model with a projectile velocity of 2,100 feet (640 m) per second. Low-angle (single-purpose/non-anti-aircraft) mountings for this gun had a range of 7000 yards at the maximum elevation of 15 degrees. The gun entered service around 1900 with the <a href="/wiki/Bainbridge-class_destroyer" title="Bainbridge-class destroyer"><i>Bainbridge</i>-class destroyers</a>, and was also fitted to <a href="/wiki/Connecticut-class_battleship" title="Connecticut-class battleship"><i>Connecticut</i>-class battleships</a>. By <a href="/wiki/World_War_II" title="World War II">World War II</a> these guns were found only on a few Coast Guard cutters and <a href="/wiki/Defensively_Equipped_Merchant_Ships" class="mw-redirect" title="Defensively Equipped Merchant Ships">Defensively Equipped Merchant Ships</a>.<sup id="cite_ref-FOOTNOTECampbell1985146_4-0" class="reference"><a href="#cite_note-FOOTNOTECampbell1985146-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>Low-angle 3 inch/50-caliber guns (Marks 3, 5, 6, and 19) were originally mounted on ships built from the early 1900s through the early 1920s and were carried by submarines, auxiliaries, and merchant ships during the Second World War. These guns fired the same 2,700-foot-per-second (820 m/s) ammunition used by the following dual-purpose Marks, but with range limited by the maximum elevation of the mounting. These were <a href="/wiki/Built-up_gun" title="Built-up gun">built-up guns</a> with a tube, partial-length jacket, hoop and vertical <a href="/wiki/Rifled_breech_loader#The_sliding_block" title="Rifled breech loader">sliding breech</a> block.<sup id="cite_ref-FOOTNOTECampbell1985146_4-1" class="reference"><a href="#cite_note-FOOTNOTECampbell1985146-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Dual-purpose_guns_of_the_World_Wars">Dual-purpose guns of the World Wars</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=2" title="Edit section: Dual-purpose guns of the World Wars"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Ld3inch.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Ld3inch.jpg/220px-Ld3inch.jpg" decoding="async" width="220" height="145" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/8/8a/Ld3inch.jpg 1.5x" data-file-width="320" data-file-height="211" /></a><figcaption>3"/50-caliber gun aboard <a href="/wiki/USS_Slater" title="USS Slater">USS <i>Slater</i></a>.</figcaption></figure> <p><a href="/wiki/Dual_purpose_gun" class="mw-redirect" title="Dual purpose gun">Dual-purpose</a> 3 inch/50-<a href="/wiki/Caliber_(artillery)" title="Caliber (artillery)">caliber</a> guns (Marks 10, 17, 18, and 20) first entered service in 1915 as a refit to <a href="/wiki/USS_Texas_(BB-35)" title="USS Texas (BB-35)">USS <i>Texas</i> (BB-35)</a>, and were subsequently mounted on many types of ships as the need for anti-aircraft protection was recognized. During World War II, they were the primary gun armament on <a href="/wiki/Destroyer_escort" title="Destroyer escort">destroyer escorts</a>, <a href="/wiki/Patrol_frigate" class="mw-redirect" title="Patrol frigate">patrol frigates</a>, <a href="/wiki/Submarine_chaser" title="Submarine chaser">submarine chasers</a>, <a href="/wiki/Minesweeper_(ship)" class="mw-redirect" title="Minesweeper (ship)">minesweepers</a>, some fleet <a href="/wiki/Submarine" title="Submarine">submarines</a>, and other auxiliary vessels, and were used as a secondary dual-purpose battery on some other types of ships, including some older battleships. They also replaced the original low-angle <a href="/wiki/4%22/50_caliber_gun" class="mw-redirect" title="4"/50 caliber gun">4"/50-caliber guns</a> (Mark 9) on "flush-deck" <a href="/wiki/Wickes-class_destroyer" title="Wickes-class destroyer"><i>Wickes</i></a> and <a href="/wiki/Clemson-class_destroyer" title="Clemson-class destroyer"><i>Clemson</i>-class destroyers</a> to provide better anti-aircraft protection. The gun was also used on specialist destroyer conversions; the "AVD" <a href="/wiki/Seaplane_tender" title="Seaplane tender">seaplane tender</a> conversions received two guns; the "APD" <a href="/wiki/High-speed_transport" title="High-speed transport">high-speed transports</a>, "DM" <a href="/wiki/Minelayer" title="Minelayer">minelayers</a>, and <a href="/wiki/Destroyer_minesweeper" title="Destroyer minesweeper">"DMS" minesweeper</a> conversions received three guns, and those retaining destroyer classification received six.<sup id="cite_ref-FOOTNOTESilverstone1968112,_212,_215,_276,_303_5-0" class="reference"><a href="#cite_note-FOOTNOTESilverstone1968112,_212,_215,_276,_303-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>These dual-purpose guns were "<a href="/wiki/Quick-firing_gun" title="Quick-firing gun">quick-firing</a>", meaning that they used fixed ammunition, with powder case and projectile permanently attached, and handled as a single unit weighing 34 pounds (as opposed to older guns and/or heavier guns, in which the shell and powder are handled and loaded separately, which reduces the weight of each handled component, but slows the loading process). The <a href="/wiki/Shell_(projectile)" title="Shell (projectile)">shells</a> alone weighed about 13 pounds, including an explosive <a href="/wiki/Bursting_charge" class="mw-redirect" title="Bursting charge">bursting charge</a> of 0.81 pounds for <a href="/wiki/Anti-aircraft" class="mw-redirect" title="Anti-aircraft">anti-aircraft</a> (AA) rounds or 1.27 pounds for high-capacity (HC) rounds, the remainder of the weight being the steel casing. Maximum range was 14,600 yards at 45 degrees elevation and ceiling was 29,800 feet (9,100 m) at 85 degrees elevation. Useful life expectancy was 4300 <a href="/wiki/List_of_British_ordnance_terms#Effective_Full_Charge" class="mw-redirect" title="List of British ordnance terms">effective full charges</a> (EFC) per barrel.<sup id="cite_ref-FOOTNOTECampbell1985145_6-0" class="reference"><a href="#cite_note-FOOTNOTECampbell1985145-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>This is not to be confused with the "rapid-fire" of later gun mounts that used an autoloader mechanism to insert the fixed QF ammunition into the breech. This in turn is not to be confused to a fully automatic gun. The autoloader was still manually filled with shells. </p> <div class="mw-heading mw-heading2"><h2 id="Submarine_deck_guns">Submarine deck guns</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=3" title="Edit section: Submarine deck guns"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The 3"/50-caliber gun Marks 17 and 18 was first used as a submarine <a href="/wiki/Deck_gun" title="Deck gun">deck gun</a> on <a href="/wiki/United_States_R-class_submarine" title="United States R-class submarine">R-class submarines</a> launched in 1918–1919. At the time it was an improvement on the earlier <a href="/wiki/3%22/23_caliber_gun" class="mw-redirect" title="3"/23 caliber gun">3"/23-caliber gun</a>.<sup id="cite_ref-FOOTNOTEGardinerGray1985130_7-0" class="reference"><a href="#cite_note-FOOTNOTEGardinerGray1985130-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> After using larger guns on many other submarines, the 3"/50-caliber gun Mark 21 was specified as the standard deck gun on the <a href="/wiki/United_States_Porpoise-class_submarine" title="United States Porpoise-class submarine"><i>Porpoise</i></a>- through <a href="/wiki/Gato-class_submarine" title="Gato-class submarine"><i>Gato</i>-class submarines</a> launched in 1935–1942. The small gun was chosen to remove the temptation to engage enemy escort vessels on the surface.<sup id="cite_ref-FOOTNOTEFriedman1995193_8-0" class="reference"><a href="#cite_note-FOOTNOTEFriedman1995193-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> The gun was initially mounted aft of the <a href="/wiki/Conning_tower" title="Conning tower">conning tower</a> to reduce submerged drag, but early in World War II it was shifted to a forward position at the commanding officer's option. Wartime experience showed that larger guns were needed. This need was initially met by transferring <a href="/wiki/4%22/50_caliber_gun" class="mw-redirect" title="4"/50 caliber gun">4"/50-caliber guns</a> from <a href="/wiki/United_States_S-class_submarine" title="United States S-class submarine">S-class submarines</a> as they were shifted from combat to training roles beginning in late 1942. Later, the <a href="/wiki/5%22/25_caliber_gun" class="mw-redirect" title="5"/25 caliber gun">5"/25-caliber gun</a>, initially removed from battleships sunk or damaged in the <a href="/wiki/Attack_on_Pearl_Harbor" title="Attack on Pearl Harbor">attack on Pearl Harbor</a> and later manufactured in a submarine version, became standard.<sup id="cite_ref-FOOTNOTEFriedman1995214–219_9-0" class="reference"><a href="#cite_note-FOOTNOTEFriedman1995214–219-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Cold_War_anti-aircraft_gun">Cold War anti-aircraft gun</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=4" title="Edit section: Cold War anti-aircraft gun"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Alva_Laval_Model_61_76mm_gun.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Alva_Laval_Model_61_76mm_gun.JPG/220px-Alva_Laval_Model_61_76mm_gun.JPG" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Alva_Laval_Model_61_76mm_gun.JPG/330px-Alva_Laval_Model_61_76mm_gun.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Alva_Laval_Model_61_76mm_gun.JPG/440px-Alva_Laval_Model_61_76mm_gun.JPG 2x" data-file-width="4608" data-file-height="3456" /></a><figcaption>3-inch/50 Mk. 22 in Mk. 22 mounting in <a href="/wiki/Aalborg_S%C3%B8farts-_og_Marinemuseum" title="Aalborg Søfarts- og Marinemuseum">Aalborg Maritime Museum</a>.</figcaption></figure> <p>During the final year of the <a href="/wiki/Second_World_War" class="mw-redirect" title="Second World War">Second World War</a>, it was found that multiple hits from <a href="/wiki/Oerlikon_20_mm_cannon" title="Oerlikon 20 mm cannon">Oerlikon 20 mm cannon</a> and <a href="/wiki/Bofors_40_mm_Automatic_Gun_L/60" class="mw-redirect" title="Bofors 40 mm Automatic Gun L/60">Bofors 40 mm guns</a> were often unable to shoot down high-speed Japanese <a href="/wiki/Kamikaze" title="Kamikaze">kamikaze</a> aircraft at short ranges before they hit Allied ships; the 3-inch/50-caliber gun was adopted as a more powerful replacement for these weapons. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:3in50_Mk_33_mount_on_USS_Wasp_(CVA-18)_c1954.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/3in50_Mk_33_mount_on_USS_Wasp_%28CVA-18%29_c1954.jpg/170px-3in50_Mk_33_mount_on_USS_Wasp_%28CVA-18%29_c1954.jpg" decoding="async" width="170" height="189" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/3in50_Mk_33_mount_on_USS_Wasp_%28CVA-18%29_c1954.jpg/255px-3in50_Mk_33_mount_on_USS_Wasp_%28CVA-18%29_c1954.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/3in50_Mk_33_mount_on_USS_Wasp_%28CVA-18%29_c1954.jpg/340px-3in50_Mk_33_mount_on_USS_Wasp_%28CVA-18%29_c1954.jpg 2x" data-file-width="714" data-file-height="793" /></a><figcaption>Mk. 33 twin mount on <a href="/wiki/USS_Wasp_(CV-18)" title="USS Wasp (CV-18)">USS <i>Wasp</i></a>, in 1954.</figcaption></figure> <p>The 3-inch/50-caliber gun (Mark 22) was a semiautomatic anti-aircraft weapon with a power-driven automatic loader and was fitted as single and twin mounts. The single mount was to be exchanged for a twin 40 mm antiaircraft gun mount, and the twin 3-inch/50 for a quadruple 40 mm mount, on <a href="/wiki/Essex-class_aircraft_carrier" title="Essex-class aircraft carrier"><i>Essex</i>-class aircraft carriers</a>, and <a href="/wiki/Allen_M._Sumner-class_destroyer" title="Allen M. Sumner-class destroyer"><i>Allen M. Sumner</i></a> and <a href="/wiki/Gearing-class_destroyer" title="Gearing-class destroyer"><i>Gearing</i>-class destroyers</a>. Although intended as a one-for-one replacement for the 40 mm mounts, the new 3-inch (76 mm) mounts were heavier than expected, and on most ships, the mounts could only replace Bofors guns on a two-for-three basis. The mounts were of the dual purpose, open-base-ring type and the right and left gun assemblies were identical. The mounts used a common power drive that could train at a rate of 30 degrees/second and elevate from 15 degrees to 85 degrees at a rate of 24 degrees/second. The cannon was fed automatically from an on-mount magazine which was replenished by two loaders on each side of the cannon.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:DN-ST-92-00268_twin_3inch_50cal_gun_mount.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/ca/DN-ST-92-00268_twin_3inch_50cal_gun_mount.jpg/220px-DN-ST-92-00268_twin_3inch_50cal_gun_mount.jpg" decoding="async" width="220" height="146" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/ca/DN-ST-92-00268_twin_3inch_50cal_gun_mount.jpg/330px-DN-ST-92-00268_twin_3inch_50cal_gun_mount.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/ca/DN-ST-92-00268_twin_3inch_50cal_gun_mount.jpg/440px-DN-ST-92-00268_twin_3inch_50cal_gun_mount.jpg 2x" data-file-width="2800" data-file-height="1860" /></a><figcaption>Mk. 33 Mod. 13 enclosed twin mount on <a href="/wiki/USS_Blue_Ridge_(LCC-19)" title="USS Blue Ridge (LCC-19)">USS <i>Blue Ridge</i></a>, in 1991.</figcaption></figure> <p>With <a href="/wiki/Proximity_fuze" title="Proximity fuze">proximity fuze</a> and <a href="/wiki/Fire-control_radar" title="Fire-control radar">fire-control radar</a>, a twin 3-inch/50 mount firing 50 rounds per minute per barrel was considered more effective than a quad Bofors 40 mm gun against subsonic aircraft,<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> but relatively ineffective against supersonic jets and <a href="/wiki/Cruise_missile" title="Cruise missile">cruise missiles</a>. Destroyers that were modernized during the <a href="/wiki/Fleet_Rehabilitation_and_Modernization" title="Fleet Rehabilitation and Modernization">Fleet Rehabilitation and Modernization</a> (FRAM) program of the 1960s had their 3-inch (76 mm) guns removed. Experimentation with an extended range variant the fully automatic <a href="/wiki/3%22/70_Mark_26_gun" class="mw-redirect" title="3"/70 Mark 26 gun">3"/70 Mark 26 gun</a> was abandoned as shipboard <a href="/wiki/Surface-to-air_missile" title="Surface-to-air missile">surface-to-air missiles</a> were developed. The United States Navy considered contemporary <a href="/wiki/5-inch/38-caliber_gun" title="5-inch/38-caliber gun">5-inch/38-caliber guns</a> and <a href="/wiki/5-inch/54-caliber_Mark_42_gun" title="5-inch/54-caliber Mark 42 gun">5-inch/54-caliber Mark 42 guns</a> more effective against surface targets. In 1992, the 3-inch/50-caliber main battery on <a href="/wiki/USCGC_Storis" title="USCGC Storis">USCGC <i>Storis</i></a> was removed and was supposedly the last 3-inch/50-caliber gun in service aboard any US warship, although US Navy <a href="/wiki/Charleston-class_amphibious_cargo_ship" title="Charleston-class amphibious cargo ship"><i>Charleston</i>-class</a> <a href="/wiki/Amphibious_cargo_ship" title="Amphibious cargo ship">amphibious cargo ships</a> retained their forward mounts until <a href="/wiki/USS_El_Paso_(LKA-117)" title="USS El Paso (LKA-117)">USS <i>El Paso</i> (LKA-117)</a> was decommissioned in 1994.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (October 2013)">citation needed</span></a></i>]</sup> The gun is still in service on warships of the <a href="/wiki/Philippine_Navy" title="Philippine Navy">Philippine Navy</a>. </p><p>The 17 <a href="/wiki/Asheville-class_gunboat" title="Asheville-class gunboat"><i>Asheville</i>-class gunboats</a> mounted a single 3-inch/50 Mk 34 as their primary armament. </p> <div class="mw-heading mw-heading2"><h2 id="Ships_mounting_3-inch/50-caliber_guns"><span id="Ships_mounting_3-inch.2F50-caliber_guns"></span>Ships mounting 3-inch/50-caliber guns</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=5" title="Edit section: Ships mounting 3-inch/50-caliber guns"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="World_War_I">World War I</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=6" title="Edit section: World War I"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 20em;"> <ul><li><a href="/wiki/Bainbridge-class_destroyer" title="Bainbridge-class destroyer"><i>Bainbridge</i>-class destroyers</a></li> <li><a href="/wiki/Chester-class_cruiser" title="Chester-class cruiser"><i>Chester</i>-class cruisers</a></li> <li><a href="/wiki/Connecticut-class_battleship" title="Connecticut-class battleship"><i>Connecticut</i>-class battleships</a></li> <li><a href="/wiki/Indiana-class_battleship" title="Indiana-class battleship"><i>Indiana</i>-class battleships</a></li> <li><a href="/wiki/Mississippi-class_battleship" title="Mississippi-class battleship"><i>Mississippi</i>-class battleships</a></li> <li><a href="/wiki/Nevada-class_battleship" title="Nevada-class battleship"><i>Nevada</i>-class battleships</a></li> <li><a href="/wiki/New_York-class_battleship" title="New York-class battleship"><i>New York</i>-class battleships</a></li> <li><a href="/wiki/Paulding-class_destroyer" title="Paulding-class destroyer"><i>Paulding</i>-class destroyers</a></li> <li><a href="/wiki/Pennsylvania-class_battleship" title="Pennsylvania-class battleship"><i>Pennsylvania</i>-class battleships</a></li> <li><a href="/wiki/Pennsylvania-class_cruiser" title="Pennsylvania-class cruiser"><i>Pennsylvania</i>-class cruisers</a></li> <li><a href="/wiki/United_States_R-class_submarine" title="United States R-class submarine">R-class submarines</a></li> <li><a href="/wiki/St._Louis-class_cruiser_(1905)" class="mw-redirect" title="St. Louis-class cruiser (1905)"><i>St. Louis</i>-class</a> cruisers</li> <li><a href="/wiki/Smith-class_destroyer" title="Smith-class destroyer"><i>Smith</i>-class destroyers</a></li> <li><a href="/wiki/South_Carolina-class_battleship" title="South Carolina-class battleship"><i>South Carolina</i>-class battleships</a></li> <li><a href="/wiki/Tennessee-class_cruiser" title="Tennessee-class cruiser"><i>Tennessee</i>-class cruisers</a></li> <li><a href="/wiki/Truxtun-class_destroyer" title="Truxtun-class destroyer"><i>Truxtun</i>-class destroyers</a></li> <li><a href="/wiki/Virginia-class_battleship" title="Virginia-class battleship"><i>Virginia</i>-class battleships</a></li></ul> </div> <div class="mw-heading mw-heading3"><h3 id="World_War_II">World War II</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=7" title="Edit section: World War II"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The 3-inch/50 was standard-issue on at least 63 classes of ships that have a strong association with World War II. The total number of vessels amounts to </p> <ul><li><ul><li>10 light cruisers</li> <li>119 submarines (est. maximum 119 installed)</li> <li>498 destroyer escorts and frigates (1494 installed, 111 removed)</li> <li>1110 patrol boats, mine sweepers and submarine chasers (1110 up to 1453 installed)</li> <li>161 landing craft / amphibious assault ships (247 installed)</li> <li>116+ auxiliaries (274 installed)</li></ul></li></ul> <p>The submarines were built in the 1930s under the limitations of the <a href="/wiki/Washington_Naval_Treaty" title="Washington Naval Treaty">Washington Naval Treaty</a> and <a href="/wiki/London_Naval_Treaty" title="London Naval Treaty">its successors</a> during a <a href="/wiki/United_States_non-interventionism" title="United States non-interventionism">period of isolationism</a> and <a href="/wiki/Great_Depression" title="Great Depression">economic austerity</a>. The division into classes was typically a result of construction during a particular fiscal year, but the number built each year was small. The <i>Gato</i>s became a mass-produced iteration of this line of research and development, because they coincided with the <a href="/wiki/Two-Ocean_Navy_Act" title="Two-Ocean Navy Act">Two-Ocean Navy Act</a>. Starting with the <a href="/wiki/Balao-class_submarine" title="Balao-class submarine"><i>Balao</i></a> class of submarines, the <a href="/wiki/5-inch/25-caliber_gun" title="5-inch/25-caliber gun">5-inch/25-caliber gun</a> became the standard deck gun of the US Navy </p> <ul><li><ul><li>2 <a href="/wiki/Cachalot-class_submarine" title="Cachalot-class submarine"><i>Cachalot</i></a> (FY33)</li> <li>10 <a href="/wiki/United_States_Porpoise-class_submarine" title="United States Porpoise-class submarine"><i>Porpoise</i></a> (FY34, FY35)</li> <li>6 <a href="/wiki/Salmon-class_submarine" title="Salmon-class submarine"><i>Salmon</i></a> (FY36)</li> <li>10 <a href="/wiki/Sargo-class_submarine" title="Sargo-class submarine"><i>Sargo</i></a> (FY37, FY38)</li> <li>12 <a href="/wiki/Tambor-class_submarine" title="Tambor-class submarine"><i>Tambor</i></a> (FY39, FY40)</li> <li>2 <a href="/wiki/Mackerel-class_submarine" title="Mackerel-class submarine"><i>Mackerel</i></a> (FY40)</li> <li>77 <a href="/wiki/Gato-class_submarine" title="Gato-class submarine"><i>Gato</i></a> (FY41)</li></ul></li></ul> <p><a href="/wiki/Destroyer_escort" title="Destroyer escort">Destroyer escorts</a> were a relative late-comer with production commencing in 1942 and were all mass-produced. They were quick to build and entered service in 1943. Later war-time classes had a main armament of two <a href="/wiki/5-inch/38-caliber_gun" title="5-inch/38-caliber gun">5-inch/38</a>, <a href="/wiki/High-speed_transport" title="High-speed transport">APD</a> conversions had one such gun. Separation into classes is a result of different propulsion systems used and whether or not torpedoes were carried. </p> <ul><li><ul><li>3 guns per vessel</li> <li>probably all manually loaded Mark 21 or Mark 22</li> <li>65 <a href="/wiki/Evarts-class_destroyer_escort" title="Evarts-class destroyer escort"><i>Evarts</i></a> (diesel-electric, short hull, no torpedoes)</li> <li>102 <a href="/wiki/Buckley-class_destroyer_escort" title="Buckley-class destroyer escort"><i>Buckley</i></a> (turbo-electric, 3 torpedoes) <ul><li>37 converted to APDs after commissioning, all 3-inch guns removed</li></ul></li> <li>72 <a href="/wiki/Cannon-class_destroyer_escort" title="Cannon-class destroyer escort"><i>Cannon</i></a> (diesel-electric, 3 torpedoes)</li> <li>85 <a href="/wiki/Edsall-class_destroyer_escort" title="Edsall-class destroyer escort"><i>Edsall</i></a> (geared diesel, 3 torpedoes)</li> <li>78 <a href="/wiki/Captain-class_frigate" title="Captain-class frigate"><i>Captain</i>-class</a> <a href="/wiki/Frigate" title="Frigate">frigates</a> <ul><li>32 of 97 <i>Evarts</i> and 46 of 148 <i>Buckley</i> converted before commissioning, all 3-inch guns retained</li></ul></li> <li>75 <a href="/wiki/Tacoma-class_frigate" title="Tacoma-class frigate"><i>Tacoma</i>-class frigates</a> (3 guns per ship) <ul><li>essentially a destroyer escort with a merchant hull and triple expansion steam engines)</li></ul></li> <li>21 <a href="/wiki/Colony-class_frigate" title="Colony-class frigate"><i>Colony</i>-class frigates</a> (3 guns per ship) <ul><li>21 of 96 <i>Tacoma</i> in Royal Navy service</li></ul></li></ul></li></ul> <p>Converted destroyers of the WW1-era <a href="/wiki/Wickes-class_destroyer" title="Wickes-class destroyer"><i>Wickes</i></a> and <a href="/wiki/Clemson-class_destroyer" title="Clemson-class destroyer"><i>Clemson</i></a> classes were equipped with 3-inch/50 guns while being converted to high speed transports (3 guns), minelayers (3), minesweepers (3) or seaplane tenders (2). </p><p>Patrol boats of less than 1000 tons, some of which were <a href="/wiki/Wooden_boats_of_World_War_II" title="Wooden boats of World War II">wooden boats</a>. These minesweepers were equipped with <a href="/wiki/Anti-submarine_warfare" title="Anti-submarine warfare">anti-submarine warfare</a> equipment and their designs are closely related to the submarine chasers. Submarine chasers can be characterized as smaller, cheaper, coastal waters destroyer escorts. All ships in this group used diesel propulsion. </p> <ul><li><ul><li>2 <a href="/wiki/Raven-class_minesweeper" title="Raven-class minesweeper"><i>Raven</i>-class minesweepers</a> (1 per boat)</li> <li>343 <a href="/wiki/PC-461-class_submarine_chaser" title="PC-461-class submarine chaser"><i>PC-461</i>-class submarine chasers</a> (1 or 2 per boat)</li> <li>123 <a href="/wiki/Admirable-class_minesweeper" title="Admirable-class minesweeper"><i>Admirable</i>-class minesweepers</a> (1 per boat)</li> <li>68 <a href="/wiki/PCE-842-class_patrol_craft" title="PCE-842-class patrol craft"><i>PCE-842</i>-class patrol crafts</a> (1 per boat</li> <li>95 <a href="/wiki/Auk-class_minesweeper" title="Auk-class minesweeper"><i>Auk</i>-class minesweepers</a> (1 per boat)</li> <li>481 <a href="/wiki/YMS-1-class_minesweeper" title="YMS-1-class minesweeper"><i>YMS-1</i>-class</a> <a href="/wiki/Auxiliary_motor_minesweeper" class="mw-redirect" title="Auxiliary motor minesweeper">yard minesweepers</a> (1 per boat)</li></ul></li></ul> <p>Amphibious Assault Ships </p> <ul><li><ul><li>130 <a href="/wiki/Landing_Craft_Support" title="Landing Craft Support">Landing Craft Support</a> (1 per vessel)</li> <li><a href="/wiki/Attack_transport" title="Attack transport">Attack transports</a> <ul><li>Based on pre-war cargo ships <ul><li>8 <a href="/wiki/Harris-class_attack_transport" title="Harris-class attack transport"><i>Harris</i>-class</a> (4 per ship)</li> <li>2 <a href="/wiki/McCawley-class_attack_transport" title="McCawley-class attack transport"><i>McCawley</i>-class</a> (4 per ship)</li> <li>5 <a href="/wiki/Heywood-class_attack_transport" title="Heywood-class attack transport"><i>Heywood</i>-class</a> (4 per ship)</li> <li><a href="/wiki/USS_John_Penn" title="USS John Penn"><i>John Penn</i> (APA-23)</a> (4)</li> <li><a href="/wiki/USS_Edward_Rutledge" title="USS Edward Rutledge"><i>Edward Rutledge</i> (APA-24)</a> (1)</li></ul></li> <li><a href="/wiki/Type_C3_ship" class="mw-redirect" title="Type C3 ship">Type C3 ship</a> <ul><li>7 <a href="/wiki/President_Jackson-class_attack_transport" title="President Jackson-class attack transport"><i>President Jackson</i>-class</a> (4 per ship)</li> <li>3 <a href="/wiki/Arthur_Middleton-class_attack_transport" title="Arthur Middleton-class attack transport"><i>Arthur Middleton</i>-class</a> (4 per ship)</li> <li>2 <a href="/wiki/Frederick_Funston-class_attack_transport" title="Frederick Funston-class attack transport"><i>Frederick Funston</i>-class</a> (2 per ship)</li></ul></li> <li><a href="/wiki/Type_P1_ship" title="Type P1 ship">Type P1 ship</a> <ul><li>2 <a href="/wiki/Doyen-class_attack_transport" title="Doyen-class attack transport"><i>Doyen</i>-class</a> (4 per ship)</li></ul></li></ul></li></ul></li></ul> <p>Auxiliary vessels, typically made of a cargo or tanker hull </p> <ul><li><ul><li><a href="/wiki/T1_tanker" title="T1 tanker">T1 tanker</a> <ul><li>23 <a href="/wiki/Patapsco-class_gasoline_tanker" title="Patapsco-class gasoline tanker"><i>Patapsco</i>-class</a> <a href="/wiki/Gasoline_tanker" class="mw-redirect" title="Gasoline tanker">gasoline tankers</a> (4 per ship)</li> <li>34 <a href="/wiki/Mettawee-class_gasoline_tanker" class="mw-redirect" title="Mettawee-class gasoline tanker"><i>Mettawee</i>-class</a> <a href="/wiki/Gasoline_tanker" class="mw-redirect" title="Gasoline tanker">gasoline tankers</a> (1 per ship)</li></ul></li> <li><a href="/wiki/T2_tanker" title="T2 tanker">T2 tanker</a> <ul><li>16 (geared turbine) <a href="/wiki/Kennebec-class_oiler" title="Kennebec-class oiler"><i>Kennebec</i>-class oilers</a> (4 per ship)</li> <li>14 (turbo-electric) <a href="/wiki/Suamico-class_oiler" title="Suamico-class oiler"><i>Suamico</i>-class oilers</a> (4 per ship)</li> <li>12 (turbo-electric) <a href="/wiki/Escambia-class_oiler" title="Escambia-class oiler"><i>Escambia</i>-class oilers</a> (4 per ship)</li></ul></li> <li><a href="/wiki/T3_tanker" title="T3 tanker">T3 tanker</a> <ul><li>5 <a href="/wiki/Chiwawa-class_oiler" title="Chiwawa-class oiler"><i>Chiwawa</i>-class oilers</a> (4 per ship)</li> <li>23 of 35 <a href="/wiki/Cimarron-class_oiler_(1939)" title="Cimarron-class oiler (1939)"><i>Cimarron</i>-class oilers</a> (4 per ship)</li></ul></li> <li><a href="/wiki/Type_C1_ship" title="Type C1 ship">C1 Cargo</a> <ul><li>63 <a href="/wiki/Alamosa-class_cargo_ship" class="mw-redirect" title="Alamosa-class cargo ship"><i>Alamosa</i>-class</a> <a href="/wiki/Cargo_ship" title="Cargo ship">cargo ships</a> (C1-M-AV1) (1 per ship)</li></ul></li> <li><a href="/wiki/Type_C2_ship" title="Type C2 ship">C2 Cargo</a> <ul><li>7 <a href="/w/index.php?title=La_Salle-class_transport&action=edit&redlink=1" class="new" title="La Salle-class transport (page does not exist)"><i>La Salle</i>-class</a> <a href="/wiki/Transport" title="Transport">transports</a> (C2-S-B1) (4 per ship)</li> <li>2 <a href="/w/index.php?title=Storm_King-class_transport&action=edit&redlink=1" class="new" title="Storm King-class transport (page does not exist)"><i>Storm King</i>-class</a> <a href="/wiki/Transport" title="Transport">transports</a> (C2-S-AJ1) (4 per ship)</li> <li>8 <a href="/wiki/Mount_Hood-class_ammunition_ship" class="mw-redirect" title="Mount Hood-class ammunition ship"><i>Mount Hood</i>-class</a> <a href="/wiki/Ammunition_ship" title="Ammunition ship">ammunition ships</a> (C2-S-AJ1) (4 per ship)</li> <li>7 <a href="/wiki/Lassen-class_ammunition_ship" class="mw-redirect" title="Lassen-class ammunition ship"><i>Lassen</i>-class</a> <a href="/wiki/Ammunition_ship" title="Ammunition ship">ammunition ships</a> (4 per ship)</li></ul></li> <li><a href="/wiki/Type_C3_ship" class="mw-redirect" title="Type C3 ship">C3 Cargo</a> <ul><li>4 <a href="/w/index.php?title=Aegir-class_submarine_tender&action=edit&redlink=1" class="new" title="Aegir-class submarine tender (page does not exist)"><i>Aegir</i>-class</a> <a href="/wiki/Submarine_tender" title="Submarine tender">submarine tenders</a> (4 per ship)</li></ul></li> <li><a href="/wiki/Liberty_Ship" class="mw-redirect" title="Liberty Ship">Liberty Ships</a> <ul><li>18 <a href="/wiki/Armadillo-class_tanker" title="Armadillo-class tanker"><i>Armadillo</i>-class tankers</a> (Z-ET1-S-C3) (1 per ship)</li> <li>48 of 65 <a href="/wiki/Crater-class_cargo_ship" title="Crater-class cargo ship"><i>Crater</i>-class</a> <a href="/wiki/Cargo_ship" title="Cargo ship">cargo ships</a> (EC2-S-C1) (1 per ship)</li> <li>16 <a href="/wiki/Guardian-class_radar_picket_ship" title="Guardian-class radar picket ship"><i>Guardian</i>-class</a> <a href="/wiki/Radar_picket_ship" class="mw-redirect" title="Radar picket ship">radar picket ships</a> (Z-EC2-S-C5) (2 per ship)</li> <li>11 <a href="/w/index.php?title=Acubens-class_stores_ship&action=edit&redlink=1" class="new" title="Acubens-class stores ship (page does not exist)"><i>Acubens</i>-class</a> <a href="/wiki/Stores_ship" class="mw-redirect" title="Stores ship">stores ships</a> (EC2-S-C1) (1 per ship)</li></ul></li> <li>40 <a href="/wiki/Ailanthus-class_net_laying_ship" title="Ailanthus-class net laying ship"><i>Ailanthus</i>-class</a> <a href="/wiki/Net_laying_ship" title="Net laying ship">net laying ships</a> (1 per ship)</li> <li>15 <a href="/wiki/Cohoes-class_net_laying_ship" title="Cohoes-class net laying ship"><i>Cohoes</i>-class</a> <a href="/wiki/Net_laying_ship" title="Net laying ship">net laying ships</a> (1 per ship)</li> <li>32 <a href="/wiki/Aloe-class_net_laying_ship" title="Aloe-class net laying ship"><i>Aloe</i>-class</a> <a href="/wiki/Net_laying_ship" title="Net laying ship">net laying ships</a> (1 per ship)</li> <li>10 <a href="/w/index.php?title=Portunus-class_motor_boat_tender&action=edit&redlink=1" class="new" title="Portunus-class motor boat tender (page does not exist)"><i>Portunus</i>-class</a> <a href="/w/index.php?title=Motor_boat_tender&action=edit&redlink=1" class="new" title="Motor boat tender (page does not exist)">motor boat tenders</a> (1 per ship)</li> <li>12 <a href="/wiki/Aristaeus-class_repair_ship" title="Aristaeus-class repair ship"><i>Aristaeus</i>-class</a> <a href="/wiki/Repair_ship" title="Repair ship">repair ships</a> (1 per ship)</li> <li>49 <a href="/wiki/Sotoyomo-class_tugboat" title="Sotoyomo-class tugboat"><i>Sotoyomo</i>-class</a> <a href="/wiki/Tugboat" title="Tugboat">tugboats</a> (1 per boat)</li> <li>29 <a href="/wiki/Cherokee-class_tugboat" title="Cherokee-class tugboat"><i>Cherokee</i>-class</a> fleet tugs (1 per boat)</li> <li>27 <a href="/wiki/Abnaki-class_tugboat" title="Abnaki-class tugboat"><i>Abnaki</i>-class</a> fleet tugs (1 per boat)</li> <li>17 <a href="/w/index.php?title=Adria-class_stores_ship&action=edit&redlink=1" class="new" title="Adria-class stores ship (page does not exist)"><i>Adria</i>-class</a> <a href="/wiki/Stores_ship" class="mw-redirect" title="Stores ship">stores ships</a> (1 per ship)</li> <li>6 <a href="/wiki/Mizar-class_stores_ship" class="mw-redirect" title="Mizar-class stores ship"><i>Mizar</i>-class</a> <a href="/wiki/Stores_ship" class="mw-redirect" title="Stores ship">stores ships</a> (3 or 4 per ship)</li> <li>9 <a href="/w/index.php?title=Chanticleer-class_submarine_rescue_ship&action=edit&redlink=1" class="new" title="Chanticleer-class submarine rescue ship (page does not exist)"><i>Chanticleer</i>-class</a> <a href="/wiki/Submarine_rescue_ship" title="Submarine rescue ship">submarine rescue ships</a> (2 per ship)</li> <li>3 <a href="/w/index.php?title=Penguin-class_submarine_rescue_ship&action=edit&redlink=1" class="new" title="Penguin-class submarine rescue ship (page does not exist)"><i>Penguin</i>-class</a> <a href="/wiki/Submarine_rescue_ship" title="Submarine rescue ship">submarine rescue ships</a> (1 per ship)</li> <li>2 <a href="/w/index.php?title=Pigeon-class_submarine_rescue_ship&action=edit&redlink=1" class="new" title="Pigeon-class submarine rescue ship (page does not exist)"><i>Pigeon</i>-class</a> <a href="/wiki/Submarine_rescue_ship" title="Submarine rescue ship">submarine rescue ships</a> (2 per ship)</li> <li>4 <a href="/w/index.php?title=Anchor-class_rescue_and_salvage_ship&action=edit&redlink=1" class="new" title="Anchor-class rescue and salvage ship (page does not exist)"><i>Anchor</i>-class</a> <a href="/wiki/Rescue_and_salvage_ship" title="Rescue and salvage ship">rescue and salvage ships</a> (1 per ship)</li> <li>13 <a href="/wiki/Cactus-class_buoy_tender" class="mw-redirect" title="Cactus-class buoy tender"><i>Cactus</i>-class</a> <a href="/wiki/Buoy_tender" title="Buoy tender">buoy tenders</a> (1 per ship)</li> <li>6 <a href="/wiki/Mesquite-class_buoy_tender" class="mw-redirect" title="Mesquite-class buoy tender"><i>Mesquite</i>-class</a> <a href="/wiki/Buoy_tender" title="Buoy tender">buoy tenders</a> (1 per ship)</li> <li>20 <a href="/wiki/Iris-class_buoy_tender" class="mw-redirect" title="Iris-class buoy tender"><i>Iris</i>-class</a> <a href="/wiki/Buoy_tender" title="Buoy tender">buoy tenders</a> (1 per ship)</li></ul></li></ul> <p><b>Others</b> </p> <ul><li><ul><li><a href="/wiki/Omaha-class_cruiser" title="Omaha-class cruiser"><i>Omaha</i>-class cruisers</a> (8 per ship, upgraded from 2) <ul><li>the only vessels in the World War II category that had any armor.</li></ul></li> <li><a href="/wiki/Treasury-class_cutter" title="Treasury-class cutter"><i>Treasury</i>-class cutters</a></li></ul></li></ul> <div class="mw-heading mw-heading3"><h3 id="Post–World_War_II"><span id="Post.E2.80.93World_War_II"></span>Post–World War II</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=8" title="Edit section: Post–World War II"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1184024115"><div class="div-col" style="column-width: 40em;"> <p><b>Individual ships:</b> </p> <ul><li><a href="/wiki/USS_Bainbridge_(CGN-25)" title="USS Bainbridge (CGN-25)">USS <i>Bainbridge</i> (CGN-25)</a> – built with 2 twin mounts<sup id="cite_ref-FOOTNOTEAlbrecht1969324_12-0" class="reference"><a href="#cite_note-FOOTNOTEAlbrecht1969324-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/HMCS_Bonaventure" title="HMCS Bonaventure">HMCS <i>Bonaventure</i> (CVL 22)</a> – built with 4 twin mounts, reduced to 2 during 1967 refit (Canada)</li> <li><a href="/wiki/USS_Juneau_(CL-119)" title="USS Juneau (CL-119)">USS <i>Juneau</i> (CL-119)</a> – refit with 7 twin mounts<sup id="cite_ref-Juneau_14-0" class="reference"><a href="#cite_note-Juneau-14"><span class="cite-bracket">[</span>a<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/USS_Norfolk_(DL-1)" title="USS Norfolk (DL-1)">USS <i>Norfolk</i> (DL-1)</a> – built with 4 twin mounts</li> <li><a href="/wiki/USS_Truxtun_(CGN-35)" title="USS Truxtun (CGN-35)">USS <i>Truxtun</i> (CGN-35)</a> – built with 2 single mounts<sup id="cite_ref-FOOTNOTEAlbrecht1969324_12-1" class="reference"><a href="#cite_note-FOOTNOTEAlbrecht1969324-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/USS_Tulare" title="USS Tulare">USS <i>Tulare</i> (LKA-112)</a> – built with 6 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970493_15-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970493-15"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup></li></ul> <p><b>Ship classes:</b> </p> <ul><li><a href="/wiki/Allen_M._Sumner-class_destroyer" title="Allen M. Sumner-class destroyer"><i>Allen M. Sumner</i>-class destroyers</a> – refit up to 6 guns</li> <li><a href="/wiki/Anchorage-class_dock_landing_ship" title="Anchorage-class dock landing ship"><i>Anchorage</i>-class dock landing ships</a> – built with 4 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970497_16-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970497-16"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Annapolis-class_destroyer" title="Annapolis-class destroyer"><i>Annapolis</i>-class destroyers</a> – built with one Mark 33 twin mount forward (Canada)</li> <li><a href="/wiki/Asheville-class_gunboat" title="Asheville-class gunboat"><i>Asheville</i>-class gunboats</a> – built with a single mount</li> <li><a href="/wiki/Ashtabula-class_oiler" class="mw-redirect" title="Ashtabula-class oiler"><i>Ashtabula</i>-class oiler</a> – built with 4 single mounts<sup id="cite_ref-FOOTNOTEBlackman1970521_17-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970521-17"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Austin-class_amphibious_transport_dock" title="Austin-class amphibious transport dock"><i>Austin</i>-class amphibious transport docks</a> – built with 4 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970495_18-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970495-18"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Baltimore-class_cruiser" title="Baltimore-class cruiser"><i>Baltimore</i>-class cruisers</a> – refit up to 20 guns<sup id="cite_ref-FOOTNOTEAlbrecht1969322–3_19-0" class="reference"><a href="#cite_note-FOOTNOTEAlbrecht1969322–3-19"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Belknap-class_cruiser" title="Belknap-class cruiser"><i>Belknap</i>-class cruisers</a> – built with 2 single mounts<sup id="cite_ref-FOOTNOTEAlbrecht1969324_12-2" class="reference"><a href="#cite_note-FOOTNOTEAlbrecht1969324-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Blue_Ridge-class_command_ship" title="Blue Ridge-class command ship"><i>Blue Ridge</i>-class command ships</a> – built with 4 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970490_20-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970490-20"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Bronstein-class_frigate" title="Bronstein-class frigate"><i>Bronstein</i>-class frigates</a> – built with 1 twin and 1 single mount<sup id="cite_ref-FOOTNOTEBlackman1970456_21-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970456-21"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Charleston-class_amphibious_cargo_ship" title="Charleston-class amphibious cargo ship"><i>Charleston</i>-class amphibious cargo ships</a> – built with 4 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970493_15-1" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970493-15"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Claud_Jones-class_destroyer_escort" title="Claud Jones-class destroyer escort"><i>Claud Jones</i>-class destroyer escorts</a> – built with 2 single mounts<sup id="cite_ref-FOOTNOTEBlackman1970457_22-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970457-22"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/De_Soto_County-class_tank_landing_ship" title="De Soto County-class tank landing ship"><i>De Soto County</i>-class tank landing ships</a> – built with 3 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970499_23-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970499-23"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Dealey-class_destroyer_escort" title="Dealey-class destroyer escort"><i>Dealey</i>-class destroyer escorts</a> – built with 1 twin and 2 single mounts<sup id="cite_ref-FOOTNOTEAlbrecht1969327_24-0" class="reference"><a href="#cite_note-FOOTNOTEAlbrecht1969327-24"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Denebola-class_stores_ship" class="mw-redirect" title="Denebola-class stores ship"><i>Denebola</i>-class stores ships</a> – built with 2 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970519_25-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970519-25"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Des_Moines-class_cruiser" title="Des Moines-class cruiser"><i>Des Moines</i>-class cruisers</a> – built with 10 twin mounts<sup id="cite_ref-FOOTNOTEAlbrecht1969320_26-0" class="reference"><a href="#cite_note-FOOTNOTEAlbrecht1969320-26"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Essex-class_aircraft_carrier" title="Essex-class aircraft carrier"><i>Essex</i>-class aircraft carriers</a> – refit up to 24 guns<sup id="cite_ref-FOOTNOTEFriedman1983221_27-0" class="reference"><a href="#cite_note-FOOTNOTEFriedman1983221-27"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Farragut-class_destroyer_(1958)" title="Farragut-class destroyer (1958)"><i>Farragut</i>-class destroyers</a> – built with 2 twin mounts<sup id="cite_ref-FOOTNOTEAlbrecht1969324_12-3" class="reference"><a href="#cite_note-FOOTNOTEAlbrecht1969324-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Coontz_28-0" class="reference"><a href="#cite_note-Coontz-28"><span class="cite-bracket">[</span>b<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Fletcher-class_destroyer" title="Fletcher-class destroyer"><i>Fletcher</i>-class destroyers</a> – refit up to 6 guns</li> <li><a href="/wiki/Forrest_Sherman-class_destroyer" title="Forrest Sherman-class destroyer"><i>Forrest Sherman</i>-class destroyers</a> – built with 2 twin mounts<sup id="cite_ref-FOOTNOTEAlbrecht1969325_29-0" class="reference"><a href="#cite_note-FOOTNOTEAlbrecht1969325-29"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Gearing-class_destroyer" title="Gearing-class destroyer"><i>Gearing</i>-class destroyers</a> – refit up to 6 guns</li> <li><a href="/wiki/Guardian-class_radar_picket_ship" title="Guardian-class radar picket ship"><i>Guardian</i>-class radar picket ships</a> – converted from <a href="/wiki/Liberty_ship" title="Liberty ship">Liberty ships</a> with 2 single mounts<sup id="cite_ref-FOOTNOTEBlackman1970520_30-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970520-30"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Iwo_Jima-class_amphibious_assault_ship" title="Iwo Jima-class amphibious assault ship"><i>Iwo Jima</i>-class amphibious assault ships</a> – built with 4 twin mounts, some reduced to 2 mounts to provide space for missile launchers<sup id="cite_ref-FOOTNOTEBlackman1970492_31-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970492-31"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Kilauea-class_ammunition_ship" title="Kilauea-class ammunition ship"><i>Kilauea</i>-class ammunition ships</a> – built with 4 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970518_32-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970518-32"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Leahy-class_cruiser" title="Leahy-class cruiser"><i>Leahy</i>-class cruisers</a> – built with 2 twin mounts<sup id="cite_ref-FOOTNOTEAlbrecht1969324_12-4" class="reference"><a href="#cite_note-FOOTNOTEAlbrecht1969324-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Mackenzie-class_destroyer" title="Mackenzie-class destroyer"><i>Mackenzie</i>-class destroyers</a> – built with one Mark 33 twin mount aft except <a href="/wiki/HMCS_Qu%27Appelle_(DDE_264)" title="HMCS Qu'Appelle (DDE 264)">HMCS <i>Qu'Appelle</i></a>, which received two Mark 33 twin mounts (one forward, one aft) (Canada)</li> <li><a href="/wiki/Mars-class_combat_stores_ship" title="Mars-class combat stores ship"><i>Mars</i>-class combat stores ships</a> – built with 4 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970520_30-1" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970520-30"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Midway-class_aircraft_carrier" title="Midway-class aircraft carrier"><i>Midway</i>-class aircraft carriers</a> – refit up to 40 guns<sup id="cite_ref-FOOTNOTEFriedman1983221_27-1" class="reference"><a href="#cite_note-FOOTNOTEFriedman1983221-27"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Neosho-class_fleet_replenishment_oiler" class="mw-redirect" title="Neosho-class fleet replenishment oiler"><i>Neosho</i>-class fleet replenishment oilers</a> – built with 4 or 6 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970520_30-2" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970520-30"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Newport-class_tank_landing_ship" title="Newport-class tank landing ship"><i>Newport</i>-class tank landing ships</a> – built with 2 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970498_33-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970498-33"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Raleigh-class_amphibious_transport_dock" title="Raleigh-class amphibious transport dock"><i>Raleigh</i>-class amphibious transport docks</a> – built with 4 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970496_34-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970496-34"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Restigouche-class_destroyer" title="Restigouche-class destroyer"><i>Restigouche</i>-class destroyers</a> – built with one Mark 33 twin mount aft, those refitted to the Improved <i>Restigouche</i> configuration had them removed (Canada)</li> <li><a href="/w/index.php?title=Rigel-class_stores_ship&action=edit&redlink=1" class="new" title="Rigel-class stores ship (page does not exist)"><i>Rigel</i>-class stores ships</a> – built with 2 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970519_25-1" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970519-25"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Sacramento-class_fast_combat_support_ship" title="Sacramento-class fast combat support ship"><i>Sacramento</i>-class fast combat support ships</a> – built with 4 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970522_35-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970522-35"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup></li> <li><a href="/w/index.php?title=Simon_Lake-class_submarine_tender&action=edit&redlink=1" class="new" title="Simon Lake-class submarine tender (page does not exist)"><i>Simon Lake</i>-class submarine tenders</a> – built with 2 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970529_36-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970529-36"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/St._Laurent-class_destroyer" title="St. Laurent-class destroyer"><i>St. Laurent</i>-class destroyers</a> – built originally with 2 Mark 33 twin mounts, later had one mount removed (Canada)</li> <li><a href="/wiki/Suribachi-class_ammunition_ship" title="Suribachi-class ammunition ship"><i>Suribachi</i>-class ammunition ships</a> – built with 2 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970518_32-1" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970518-32"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Terrebonne_Parish-class_tank_landing_ship" title="Terrebonne Parish-class tank landing ship"><i>Terrebonne Parish</i>-class tank landing ships</a> – built with 3 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970499_23-1" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970499-23"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Thomaston-class_dock_landing_ship" title="Thomaston-class dock landing ship"><i>Thomaston</i>-class dock landing ships</a> – built with 6 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970497_16-1" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970497-16"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Wichita-class_replenishment_oiler" title="Wichita-class replenishment oiler"><i>Wichita</i>-class replenishment oilers</a> – built with 4 twin mounts<sup id="cite_ref-FOOTNOTEBlackman1970523_37-0" class="reference"><a href="#cite_note-FOOTNOTEBlackman1970523-37"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Worcester-class_cruiser" title="Worcester-class cruiser"><i>Worcester</i>-class cruisers</a> – built with 2 single and 11 twin mounts<sup id="cite_ref-FOOTNOTEAlbrecht1969323_38-0" class="reference"><a href="#cite_note-FOOTNOTEAlbrecht1969323-38"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="Gallery">Gallery</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=9" title="Edit section: Gallery"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul class="gallery mw-gallery-nolines"> <li class="gallerybox" style="width: 125px"> <div class="thumb" style="width: 120px;"><span typeof="mw:File"><a href="/wiki/File:Ca%C3%B1%C3%B3n_Mk.22_de_76_mm_(3%22-50)_visto_desde_babor_(16004573524).jpg" class="mw-file-description" title="Single Mark 22 aboard Atalaya."><img alt="Single Mark 22 aboard Atalaya." src="//upload.wikimedia.org/wikipedia/commons/thumb/8/89/Ca%C3%B1%C3%B3n_Mk.22_de_76_mm_%283%22-50%29_visto_desde_babor_%2816004573524%29.jpg/120px-Ca%C3%B1%C3%B3n_Mk.22_de_76_mm_%283%22-50%29_visto_desde_babor_%2816004573524%29.jpg" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/89/Ca%C3%B1%C3%B3n_Mk.22_de_76_mm_%283%22-50%29_visto_desde_babor_%2816004573524%29.jpg/180px-Ca%C3%B1%C3%B3n_Mk.22_de_76_mm_%283%22-50%29_visto_desde_babor_%2816004573524%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/89/Ca%C3%B1%C3%B3n_Mk.22_de_76_mm_%283%22-50%29_visto_desde_babor_%2816004573524%29.jpg/240px-Ca%C3%B1%C3%B3n_Mk.22_de_76_mm_%283%22-50%29_visto_desde_babor_%2816004573524%29.jpg 2x" data-file-width="2000" data-file-height="1333" /></a></span></div> <div class="gallerytext">Single Mark 22 aboard <a href="/w/index.php?title=Spanish_patrol_boat_Atalaya_(P74)&action=edit&redlink=1" class="new" title="Spanish patrol boat Atalaya (P74) (page does not exist)"><i>Atalaya</i></a>.</div> </li> <li class="gallerybox" style="width: 125px"> <div class="thumb" style="width: 120px;"><span typeof="mw:File"><a href="/wiki/File:3in_guns_on_USS_Austin_(LPD-4)_firing_1976.jpg" class="mw-file-description" title="Twin Mark 33 aboard USS Austin."><img alt="Twin Mark 33 aboard USS Austin." src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a7/3in_guns_on_USS_Austin_%28LPD-4%29_firing_1976.jpg/120px-3in_guns_on_USS_Austin_%28LPD-4%29_firing_1976.jpg" decoding="async" width="120" height="84" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a7/3in_guns_on_USS_Austin_%28LPD-4%29_firing_1976.jpg/180px-3in_guns_on_USS_Austin_%28LPD-4%29_firing_1976.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a7/3in_guns_on_USS_Austin_%28LPD-4%29_firing_1976.jpg/240px-3in_guns_on_USS_Austin_%28LPD-4%29_firing_1976.jpg 2x" data-file-width="653" data-file-height="456" /></a></span></div> <div class="gallerytext">Twin Mark 33 aboard <a href="/wiki/USS_Austin_(LPD-4)" title="USS Austin (LPD-4)">USS <i>Austin</i></a>.</div> </li> <li class="gallerybox" style="width: 125px"> <div class="thumb" style="width: 120px;"><span typeof="mw:File"><a href="/wiki/File:Mk_33_twin-gun.jpg" class="mw-file-description" title="Enclosed twin Mark 33 Mod. 13 aboard USS Bronstein."><img alt="Enclosed twin Mark 33 Mod. 13 aboard USS Bronstein." src="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/Mk_33_twin-gun.jpg/120px-Mk_33_twin-gun.jpg" decoding="async" width="120" height="96" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/Mk_33_twin-gun.jpg/180px-Mk_33_twin-gun.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/8/81/Mk_33_twin-gun.jpg 2x" data-file-width="199" data-file-height="159" /></a></span></div> <div class="gallerytext">Enclosed twin Mark 33 Mod. 13 aboard <a href="/wiki/USS_Bronstein_(FF-1037)" title="USS Bronstein (FF-1037)">USS <i>Bronstein</i></a>.</div> </li> </ul> <div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=10" title="Edit section: Notes"><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 reflist-lower-alpha"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Juneau-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-Juneau_14-0">^</a></b></span> <span class="reference-text">All of the <a href="/wiki/Juneau-class_cruiser" title="Juneau-class cruiser"><i>Juneau</i>-class cruisers</a> were planned for refit, but only <i>Juneau</i> was converted.<sup id="cite_ref-FOOTNOTEFriedman1984242_13-0" class="reference"><a href="#cite_note-FOOTNOTEFriedman1984242-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </span> </li> <li id="cite_note-Coontz-28"><span class="mw-cite-backlink"><b><a href="#cite_ref-Coontz_28-0">^</a></b></span> <span class="reference-text">The <i>Farragut</i> class is sometimes referred to as <i>Coontz</i>-class, because the fourth ship of the class—USS <i>Coontz</i>, designed ordered as a guided missile destroyer variant—was completed first.</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Footnotes">Footnotes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3-inch/50-caliber_gun&action=edit&section=11" title="Edit section: Footnotes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-FOOTNOTEDiGiulian,_3"/50_Marks_2–8DiGiulian,_3"/50_Marks_10–22DiGiulian,_3"/50_Marks_27–34-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEDiGiulian,_3"/50_Marks_2–8DiGiulian,_3"/50_Marks_10–22DiGiulian,_3"/50_Marks_27–34_1-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFDiGiulian,_3"/50_Marks_2–8">DiGiulian, 3"/50 Marks 2–8</a>; <a href="#CITEREFDiGiulian,_3"/50_Marks_10–22">DiGiulian, 3"/50 Marks 10–22</a>; <a href="#CITEREFDiGiulian,_3"/50_Marks_27–34">DiGiulian, 3"/50 Marks 27–34</a>.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text">Campbell 1985, p. 144</span> </li> <li id="cite_note-FOOTNOTEDiGiulian,_3"/50_Marks_2–8DiGiulian,_3"/50_Marks_27–34-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEDiGiulian,_3"/50_Marks_2–8DiGiulian,_3"/50_Marks_27–34_3-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFDiGiulian,_3"/50_Marks_2–8">DiGiulian, 3"/50 Marks 2–8</a>; <a href="#CITEREFDiGiulian,_3"/50_Marks_27–34">DiGiulian, 3"/50 Marks 27–34</a>.</span> </li> <li id="cite_note-FOOTNOTECampbell1985146-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTECampbell1985146_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTECampbell1985146_4-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFCampbell1985">Campbell 1985</a>, p. 146.</span> </li> <li id="cite_note-FOOTNOTESilverstone1968112,_212,_215,_276,_303-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTESilverstone1968112,_212,_215,_276,_303_5-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFSilverstone1968">Silverstone 1968</a>, pp. 112, 212, 215, 276, 303.</span> </li> <li id="cite_note-FOOTNOTECampbell1985145-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECampbell1985145_6-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCampbell1985">Campbell 1985</a>, p. 145.</span> </li> <li id="cite_note-FOOTNOTEGardinerGray1985130-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEGardinerGray1985130_7-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFGardinerGray1985">Gardiner & Gray 1985</a>, p. 130.</span> </li> <li id="cite_note-FOOTNOTEFriedman1995193-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEFriedman1995193_8-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFFriedman1995">Friedman 1995</a>, p. 193.</span> </li> <li id="cite_note-FOOTNOTEFriedman1995214–219-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEFriedman1995214–219_9-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFFriedman1995">Friedman 1995</a>, pp. 214–219.</span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></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 id="CITEREFBrinkloe1955" class="citation magazine cs1">Brinkloe, W. D. (April 1955). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=y9wDAAAAMBAJ&pg=PA90">"The Pouncer Challenges the Sub"</a>. <i><a href="/wiki/Popular_Mechanics" title="Popular Mechanics">Popular Mechanics</a></i>. pp. 88–93<span class="reference-accessdate">. Retrieved <span class="nowrap">7 December</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=Popular+Mechanics&rft.atitle=The+Pouncer+Challenges+the+Sub&rft.pages=88-93&rft.date=1955-04&rft.aulast=Brinkloe&rft.aufirst=W.+D.&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3Dy9wDAAAAMBAJ%26pg%3DPA90&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span> See p. 90.</span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation audio-visual cs1"><a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=ICifnf63lCs&t=521"><i>Photographic Report: The New Rapid Fire Naval Guns: 3"50 and 8"55</i></a>. U.S. Navy, <a href="/wiki/Naval_Photographic_Center" class="mw-redirect" title="Naval Photographic Center">Naval Photographic Center</a>. c. 1949. 8:41 minutes in. <a rel="nofollow" class="external text" href="https://ghostarchive.org/varchive/youtube/20211117/ICifnf63lCs">Archived</a> from the original on 2021-11-17<span class="reference-accessdate">. Retrieved <span class="nowrap">7 December</span> 2020</span> – via YouTube user 'usssalemca139'. <q>YouTube title: USS Salem Rapid Fire Guns</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Photographic+Report%3A+The+New+Rapid+Fire+Naval+Guns%3A+3%2250+and+8%2255&rft.pub=U.S.+Navy%2C+Naval+Photographic+Center&rft_id=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DICifnf63lCs%26t%3D521&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTEAlbrecht1969324-12"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEAlbrecht1969324_12-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEAlbrecht1969324_12-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-FOOTNOTEAlbrecht1969324_12-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-FOOTNOTEAlbrecht1969324_12-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-FOOTNOTEAlbrecht1969324_12-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFAlbrecht1969">Albrecht 1969</a>, p. 324.</span> </li> <li id="cite_note-FOOTNOTEFriedman1984242-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEFriedman1984242_13-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFFriedman1984">Friedman 1984</a>, p. 242.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970493-15"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEBlackman1970493_15-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEBlackman1970493_15-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 493.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970497-16"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEBlackman1970497_16-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEBlackman1970497_16-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 497.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970521-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970521_17-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 521.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970495-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970495_18-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 495.</span> </li> <li id="cite_note-FOOTNOTEAlbrecht1969322–3-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEAlbrecht1969322–3_19-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFAlbrecht1969">Albrecht 1969</a>, pp. 322–3.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970490-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970490_20-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 490.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970456-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970456_21-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 456.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970457-22"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970457_22-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 457.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970499-23"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEBlackman1970499_23-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEBlackman1970499_23-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 499.</span> </li> <li id="cite_note-FOOTNOTEAlbrecht1969327-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEAlbrecht1969327_24-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFAlbrecht1969">Albrecht 1969</a>, p. 327.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970519-25"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEBlackman1970519_25-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEBlackman1970519_25-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 519.</span> </li> <li id="cite_note-FOOTNOTEAlbrecht1969320-26"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEAlbrecht1969320_26-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFAlbrecht1969">Albrecht 1969</a>, p. 320.</span> </li> <li id="cite_note-FOOTNOTEFriedman1983221-27"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEFriedman1983221_27-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEFriedman1983221_27-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFFriedman1983">Friedman 1983</a>, p. 221.</span> </li> <li id="cite_note-FOOTNOTEAlbrecht1969325-29"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEAlbrecht1969325_29-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFAlbrecht1969">Albrecht 1969</a>, p. 325.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970520-30"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEBlackman1970520_30-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEBlackman1970520_30-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-FOOTNOTEBlackman1970520_30-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 520.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970492-31"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970492_31-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 492.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970518-32"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEBlackman1970518_32-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEBlackman1970518_32-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 518.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970498-33"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970498_33-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 498.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970496-34"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970496_34-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 496.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970522-35"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970522_35-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 522.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970529-36"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970529_36-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 529.</span> </li> <li id="cite_note-FOOTNOTEBlackman1970523-37"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEBlackman1970523_37-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFBlackman1970">Blackman 1970</a>, p. 523.</span> </li> <li id="cite_note-FOOTNOTEAlbrecht1969323-38"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEAlbrecht1969323_38-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFAlbrecht1969">Albrecht 1969</a>, p. 323.</span> </li> </ol></div> <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=3-inch/50-caliber_gun&action=edit&section=12" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAlbrecht1969" class="citation book cs1">Albrecht, Gerhard (1969). <i>Weyer's Warships of the World 1969</i>. Annapolis, Maryland: Naval Institute Press.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Weyer%27s+Warships+of+the+World+1969&rft.place=Annapolis%2C+Maryland&rft.pub=Naval+Institute+Press&rft.date=1969&rft.aulast=Albrecht&rft.aufirst=Gerhard&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBlackman1970" class="citation book cs1">Blackman, Raymond V. B. (1970). <i>Jane's Fighting Ships 1970-71</i>. Jane's Yearbooks.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Jane%27s+Fighting+Ships+1970-71&rft.pub=Jane%27s+Yearbooks&rft.date=1970&rft.aulast=Blackman&rft.aufirst=Raymond+V.+B.&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCampbell1985" class="citation book cs1">Campbell, John (1985). <i>Naval Weapons of World War Two</i>. Annapolis, Maryland: Naval Institute Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-87021-459-4" title="Special:BookSources/0-87021-459-4"><bdi>0-87021-459-4</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Naval+Weapons+of+World+War+Two&rft.place=Annapolis%2C+Maryland&rft.pub=Naval+Institute+Press&rft.date=1985&rft.isbn=0-87021-459-4&rft.aulast=Campbell&rft.aufirst=John&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDiGiulian,_3"/50_Marks_2–8" class="citation web cs1">DiGiulian, Tony (3 April 2020). <a rel="nofollow" class="external text" href="http://www.navweaps.com/Weapons/WNUS_3-50_mk2.php">"3"/50 (7.62 cm) Marks 2, 3, 5, 6 and 8"</a>. <i>NavWeaps.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 December</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=NavWeaps.com&rft.atitle=3%22%2F50+%287.62+cm%29+Marks+2%2C+3%2C+5%2C+6+and+8&rft.date=2020-04-03&rft.aulast=DiGiulian&rft.aufirst=Tony&rft_id=http%3A%2F%2Fwww.navweaps.com%2FWeapons%2FWNUS_3-50_mk2.php&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDiGiulian,_3"/50_Marks_10–22" class="citation web cs1">DiGiulian, Tony (15 June 2016). <a rel="nofollow" class="external text" href="http://www.navweaps.com/Weapons/WNUS_3-50_mk10-22.php">"3"/50 (7.62 cm) Mark 10, 17, 18, 19, 20, 21 and 22"</a>. <i>NavWeaps.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 December</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=NavWeaps.com&rft.atitle=3%22%2F50+%287.62+cm%29+Mark+10%2C+17%2C+18%2C+19%2C+20%2C+21+and+22&rft.date=2016-06-15&rft.aulast=DiGiulian&rft.aufirst=Tony&rft_id=http%3A%2F%2Fwww.navweaps.com%2FWeapons%2FWNUS_3-50_mk10-22.php&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDiGiulian,_3"/50_Marks_27–34" class="citation web cs1">DiGiulian, Tony (25 March 2019). <a rel="nofollow" class="external text" href="http://www.navweaps.com/Weapons/WNUS_3-50_mk27-33-34.php">"3"/50 (7.62 cm) Marks 27, 33 and 34"</a>. <i>NavWeaps.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 December</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=NavWeaps.com&rft.atitle=3%22%2F50+%287.62+cm%29+Marks+27%2C+33+and+34&rft.date=2019-03-25&rft.aulast=DiGiulian&rft.aufirst=Tony&rft_id=http%3A%2F%2Fwww.navweaps.com%2FWeapons%2FWNUS_3-50_mk27-33-34.php&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFriedman1983" class="citation book cs1">Friedman, Norman (1983). <i>U.S. Aircraft Carriers: An Illustrated Design History</i>. Annapolis, Maryland: Naval Institute Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-87021-739-9" title="Special:BookSources/0-87021-739-9"><bdi>0-87021-739-9</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=U.S.+Aircraft+Carriers%3A+An+Illustrated+Design+History&rft.place=Annapolis%2C+Maryland&rft.pub=Naval+Institute+Press&rft.date=1983&rft.isbn=0-87021-739-9&rft.aulast=Friedman&rft.aufirst=Norman&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFriedman1984" class="citation book cs1">Friedman, Norman (1984). <i>U.S. Cruisers: An Illustrated Design History</i>. Annapolis, Maryland: Naval Institute Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-87021-718-6" title="Special:BookSources/0-87021-718-6"><bdi>0-87021-718-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=U.S.+Cruisers%3A+An+Illustrated+Design+History&rft.place=Annapolis%2C+Maryland&rft.pub=Naval+Institute+Press&rft.date=1984&rft.isbn=0-87021-718-6&rft.aulast=Friedman&rft.aufirst=Norman&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFriedman1995" class="citation book cs1">Friedman, Norman (1995). <i>U.S. Submarines Through 1945: An Illustrated Design History</i>. Annapolis, Maryland: Naval Institute Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-55750-263-3" title="Special:BookSources/1-55750-263-3"><bdi>1-55750-263-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=U.S.+Submarines+Through+1945%3A+An+Illustrated+Design+History&rft.place=Annapolis%2C+Maryland&rft.pub=Naval+Institute+Press&rft.date=1995&rft.isbn=1-55750-263-3&rft.aulast=Friedman&rft.aufirst=Norman&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGardinerGray1985" class="citation book cs1">Gardiner, Robert; Gray, Randal (1985). <i>Conway's All the World's Fighting Ships 1906-1921</i>. London: Conway Maritime Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-85177-245-5" title="Special:BookSources/0-85177-245-5"><bdi>0-85177-245-5</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Conway%27s+All+the+World%27s+Fighting+Ships+1906-1921&rft.place=London&rft.pub=Conway+Maritime+Press&rft.date=1985&rft.isbn=0-85177-245-5&rft.aulast=Gardiner&rft.aufirst=Robert&rft.au=Gray%2C+Randal&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1">Grulich, Fred (2004). "Question 37/00: Effectiveness of Shipboard Anti-Aircraft Fire". <i><a href="/wiki/Warship_International" class="mw-redirect" title="Warship International">Warship International</a></i>. Vol. XLI, no. 1. International Naval Research Organization. pp. 31–33. <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/0043-0374">0043-0374</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Warship+International&rft.atitle=Question+37%2F00%3A+Effectiveness+of+Shipboard+Anti-Aircraft+Fire&rft.volume=XLI&rft.issue=1&rft.pages=31-33&rft.date=2004&rft.issn=0043-0374&rft.aulast=Grulich&rft.aufirst=Fred&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSilverstone1968" class="citation book cs1">Silverstone, Paul H. (1968). <i>U.S. Warships of World War II</i>. Doubleday and Company.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=U.S.+Warships+of+World+War+II&rft.pub=Doubleday+and+Company&rft.date=1968&rft.aulast=Silverstone&rft.aufirst=Paul+H.&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3-inch%2F50-caliber+gun" class="Z3988"></span></li></ul> <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=3-inch/50-caliber_gun&action=edit&section=13" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Commons-logo.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> Related media at Wikimedia Commons: <ul><li><a href="https://commons.wikimedia.org/wiki/3inch/50_Marks_2_3_5_6_8_naval_gun" class="extiw" title="commons:3inch/50 Marks 2 3 5 6 8 naval gun">3"/50 caliber naval gun, Marks 2, 3, 5, 6, 8</a></li> <li><a href="https://commons.wikimedia.org/wiki/3inch/50_Marks_10-22_naval_gun" class="extiw" title="commons:3inch/50 Marks 10-22 naval gun">3"/50 caliber naval gun, Marks 10–22</a></li> <li><a href="https://commons.wikimedia.org/wiki/3inch/50_Marks_27_33_34_AA_gun" class="extiw" title="commons:3inch/50 Marks 27 33 34 AA gun">3"/50 caliber naval gun, Marks 27, 33, 34</a></li></ul></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output 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.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="American_naval_weapons_of_the_First_World_War" style=";wide;padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="background-color:#C3D6EF;color:inherit;"><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:WWIUSNavalWeapons" title="Template:WWIUSNavalWeapons"><abbr title="View this template" style="color:inherit">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:WWIUSNavalWeapons" title="Template talk:WWIUSNavalWeapons"><abbr title="Discuss this template" style="color:inherit">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:WWIUSNavalWeapons" title="Special:EditPage/Template:WWIUSNavalWeapons"><abbr title="Edit this template" style="color:inherit">e</abbr></a></li></ul></div><div id="American_naval_weapons_of_the_First_World_War" style="font-size:114%;margin:0 4em">American naval weapons of the <a href="/wiki/World_War_I" title="World War I">First World War</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Capital_ship" title="Capital ship">Capital ship</a> main armament</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/10-inch/31-caliber_gun" title="10-inch/31-caliber gun">10"/30 caliber Mark 2</a></li> <li><a href="/wiki/12-inch/35-caliber_gun" title="12-inch/35-caliber gun">12"/35 caliber Mark 1 and 2</a></li> <li><a href="/wiki/12-inch/40-caliber_gun" title="12-inch/40-caliber gun">12"/40 caliber Mark 3 and 4</a></li> <li><a href="/wiki/12-inch/45-caliber_Mark_5_gun" title="12-inch/45-caliber Mark 5 gun">12"/45 caliber Mark 5</a></li> <li><a href="/wiki/12-inch/50-caliber_Mark_7_gun" title="12-inch/50-caliber Mark 7 gun">12"/50 caliber Mark 7</a></li> <li><a href="/wiki/13-inch/35-caliber_gun" title="13-inch/35-caliber gun">13"/35 caliber Mark 1 and 2</a></li> <li><a href="/wiki/14-inch/45-caliber_gun" title="14-inch/45-caliber gun">14"/45 caliber</a></li> <li><a href="/wiki/14-inch/50-caliber_gun" title="14-inch/50-caliber gun">14"/50 caliber</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Cruiser" title="Cruiser">Cruiser</a> main armament</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/6-inch/30-caliber_gun" title="6-inch/30-caliber gun">6"/30 caliber Mark 2 and 3</a></li> <li><a href="/wiki/6-inch/40-caliber_gun" title="6-inch/40-caliber gun">6"/40 caliber Mark 4</a></li> <li><a href="/wiki/6-inch/50-caliber_gun" title="6-inch/50-caliber gun">6"/50 caliber Mark 6 and 8</a></li> <li><a href="/wiki/8-inch/30-caliber_gun" title="8-inch/30-caliber gun">8"/30 caliber Mark 2</a></li> <li><a href="/wiki/8-inch/45-caliber_gun" title="8-inch/45-caliber gun">8"/45 caliber Mark 6</a></li> <li><a href="/wiki/10-inch/40-caliber_gun_Mark_3" title="10-inch/40-caliber gun Mark 3">10"/40 caliber Mark 3</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;">Secondary armament</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/5-inch/40-caliber_gun" title="5-inch/40-caliber gun">5"/40 caliber Mark 2–4</a></li> <li><a href="/wiki/5-inch/50-caliber_gun" title="5-inch/50-caliber gun">5"/50 caliber Mark 5 and 6</a></li> <li><a href="/wiki/5-inch/51-caliber_gun" title="5-inch/51-caliber gun">5"/51 caliber Mark 7–8 and 14–15</a></li> <li><a href="/wiki/6-inch/30-caliber_gun" title="6-inch/30-caliber gun">6"/30 caliber Mark 2 and 3</a></li> <li><a href="/wiki/6-inch/40-caliber_gun" title="6-inch/40-caliber gun">6"/40 caliber Mark 4</a></li> <li><a href="/wiki/6-inch/50-caliber_gun" title="6-inch/50-caliber gun">6"/50 caliber Mark 6 and 8</a></li> <li><a href="/wiki/7-inch/44-caliber_gun" title="7-inch/44-caliber gun">7"/45 caliber Mark 2</a></li> <li><a href="/wiki/8-inch/35-caliber_gun" title="8-inch/35-caliber gun">8"/35 caliber Mark 3 and 4</a></li> <li><a href="/wiki/8-inch/45-caliber_gun" title="8-inch/45-caliber gun">8"/45 caliber Mark 6</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Destroyer" title="Destroyer">Destroyer</a> and <a href="/wiki/Gunboat" title="Gunboat">gunboat</a> armament</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 class="mw-selflink selflink">3"/50 caliber</a></li> <li><a href="/wiki/4-inch/40-caliber_gun" title="4-inch/40-caliber gun">4"/40 caliber Mark 1–6</a></li> <li><a href="/wiki/4-inch/50-caliber_gun" title="4-inch/50-caliber gun">4"/50 caliber</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Submarine" title="Submarine">Submarine</a> guns</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/3-inch/23-caliber_gun" title="3-inch/23-caliber gun">3"/23 caliber</a></li> <li><a class="mw-selflink selflink">3"/50 caliber</a></li> <li><a href="/wiki/4-inch/50-caliber_gun" title="4-inch/50-caliber gun">4"/50 caliber</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Anti-aircraft_warfare" title="Anti-aircraft warfare">Anti-aircraft weapons</a></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/QF_1-pounder_pom-pom" title="QF 1-pounder pom-pom">QF 1-pounder</a></li> <li><a href="/wiki/3-inch/23-caliber_gun" title="3-inch/23-caliber gun">3"/23 caliber</a></li> <li><a class="mw-selflink selflink">3"/50 caliber</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;">Light weapons</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/.50_caliber_machine_gun" class="mw-redirect" title=".50 caliber machine gun">.50 caliber machine gun</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;">Anti-submarine weapons</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/Y-gun" class="mw-redirect" title="Y-gun">Y-gun</a></li> <li><a href="/w/index.php?title=8-inch/23-caliber_gun&action=edit&redlink=1" class="new" title="8-inch/23-caliber gun (page does not exist)">8"/23 caliber Mark 7</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="American_naval_weapons_of_the_Second_World_War" style=";wide;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" style="background-color:#C3D6EF;color:inherit;"><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:WWIIUSNavalWeapons" title="Template:WWIIUSNavalWeapons"><abbr title="View this template" style="color:inherit">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:WWIIUSNavalWeapons" title="Template talk:WWIIUSNavalWeapons"><abbr title="Discuss this template" style="color:inherit">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:WWIIUSNavalWeapons" title="Special:EditPage/Template:WWIIUSNavalWeapons"><abbr title="Edit this template" style="color:inherit">e</abbr></a></li></ul></div><div id="American_naval_weapons_of_the_Second_World_War" style="font-size:114%;margin:0 4em">American naval weapons of the <a href="/wiki/World_War_II" title="World War II">Second World War</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Capital_ship" title="Capital ship">Capital ship</a> main armament</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/12-inch/50-caliber_Mark_7_gun" title="12-inch/50-caliber Mark 7 gun">12"/50 caliber Mark 7</a></li> <li><a href="/wiki/14-inch/45-caliber_gun" title="14-inch/45-caliber gun">14"/45 caliber</a></li> <li><a href="/wiki/14-inch/50-caliber_gun" title="14-inch/50-caliber gun">14"/50 caliber</a></li> <li><a href="/wiki/16-inch/45-caliber_gun" title="16-inch/45-caliber gun">16"/45 caliber Mark 1, 5 & 8</a></li> <li><a href="/wiki/16-inch/50-caliber_Mark_2_gun" title="16-inch/50-caliber Mark 2 gun">16"/50 caliber Mark 2</a></li> <li><a href="/wiki/16-inch/45-caliber_Mark_6_gun" title="16-inch/45-caliber Mark 6 gun">16"/45 caliber Mark 6</a></li> <li><a href="/wiki/16-inch/50-caliber_Mark_7_gun" title="16-inch/50-caliber Mark 7 gun">16"/50 caliber Mark 7</a></li> <li><a href="/wiki/18-inch/48-caliber_Mark_1_gun" title="18-inch/48-caliber Mark 1 gun">18"/47 caliber Mark A</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Cruiser" title="Cruiser">Cruiser</a> main armament</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/5-inch/38-caliber_gun" title="5-inch/38-caliber gun">5"/38 caliber</a></li> <li><a href="/wiki/6-inch/53-caliber_gun" title="6-inch/53-caliber gun">6"/53 caliber</a></li> <li><a href="/wiki/6-inch/47-caliber_gun" title="6-inch/47-caliber gun">6"/47 caliber Mark 16</a></li> <li><a href="/wiki/8-inch/55-caliber_gun" title="8-inch/55-caliber gun">8"/55 caliber</a></li> <li><a href="/wiki/12-inch/50-caliber_Mark_8_gun" title="12-inch/50-caliber Mark 8 gun">12"/50 caliber Mark 8</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;">Secondary armament</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/5-inch/38-caliber_gun" title="5-inch/38-caliber gun">5"/38 caliber</a></li> <li><a href="/wiki/5-inch/51-caliber_gun" title="5-inch/51-caliber gun">5"/51 caliber</a></li> <li><a href="/wiki/5-inch/54-caliber_Mark_16_gun" title="5-inch/54-caliber Mark 16 gun">5"/54 caliber Mark 16</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Destroyer" title="Destroyer">Destroyer</a>, <a href="/wiki/Destroyer_escort" title="Destroyer escort">destroyer escort</a> <br />and <a href="/wiki/Patrol_frigate" class="mw-redirect" title="Patrol frigate">patrol frigate</a> armament</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 class="mw-selflink selflink">3"/50 caliber</a></li> <li><a href="/wiki/QF_4-inch_naval_gun_Mk_XIX" title="QF 4-inch naval gun Mk XIX">QF 4 inch Mark XIX</a></li> <li><a href="/wiki/4-inch/50-caliber_gun" title="4-inch/50-caliber gun">4"/50 caliber</a></li> <li><a href="/wiki/5-inch/38-caliber_gun" title="5-inch/38-caliber gun">5"/38 caliber</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Submarine" title="Submarine">Submarine</a> guns</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 class="mw-selflink selflink">3"/50 caliber</a></li> <li><a href="/wiki/4-inch/50-caliber_gun" title="4-inch/50-caliber gun">4"/50 caliber</a></li> <li><a href="/wiki/5-inch/25-caliber_gun" title="5-inch/25-caliber gun">5"/25 caliber</a></li> <li><a href="/wiki/5-inch/51-caliber_gun" title="5-inch/51-caliber gun">5"/51 caliber</a></li> <li><a href="/wiki/6-inch/53-caliber_gun" title="6-inch/53-caliber gun">6"/53 caliber</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Anti-aircraft_warfare" title="Anti-aircraft warfare">Anti-aircraft weapons</a></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/Oerlikon_20_mm_cannon" title="Oerlikon 20 mm cannon">20 mm Oerlikon</a></li> <li><a href="/wiki/1.1-inch/75-caliber_gun" title="1.1-inch/75-caliber gun">1.1"/75 caliber</a></li> <li><a href="/wiki/QF_1-pounder_pom-pom" title="QF 1-pounder pom-pom">QF 1-pounder</a></li> <li><a href="/wiki/Bofors_40_mm_Automatic_Gun_L/60" class="mw-redirect" title="Bofors 40 mm Automatic Gun L/60">40 mm Bofors</a></li> <li><a href="/wiki/3-inch/23-caliber_gun" title="3-inch/23-caliber gun">3"/23 caliber</a></li> <li><a class="mw-selflink selflink">3"/50 caliber</a></li> <li><a href="/wiki/5-inch/25-caliber_gun" title="5-inch/25-caliber gun">5"/25 caliber</a></li> <li><a href="/wiki/5-inch/38-caliber_gun" title="5-inch/38-caliber gun">5"/38 caliber</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;">Light weapons</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/.50_caliber_machine_gun" class="mw-redirect" title=".50 caliber machine gun">.50 caliber machine gun</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Torpedo" title="Torpedo">Torpedoes</a></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/Bliss%E2%80%93Leavitt_Mark_8_torpedo" title="Bliss–Leavitt Mark 8 torpedo">21" Mark 8</a></li> <li><a href="/wiki/Mark_10_torpedo" title="Mark 10 torpedo">21" Mark 10</a></li> <li><a href="/wiki/Mark_14_torpedo" title="Mark 14 torpedo">21" Mark 14</a></li> <li><a href="/wiki/Mark_15_torpedo" title="Mark 15 torpedo">21" Mark 15</a></li> <li><a href="/wiki/Mark_18_torpedo" title="Mark 18 torpedo">21" Mark 18</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Anti-submarine_warfare" title="Anti-submarine warfare">Anti-submarine weapons</a></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/Hedgehog_(weapon)" title="Hedgehog (weapon)">Hedgehog</a></li> <li><a href="/wiki/Mousetrap_(weapon)" title="Mousetrap (weapon)">Mousetrap</a></li> <li><a href="/wiki/Y-gun" class="mw-redirect" title="Y-gun">Y-gun</a></li> <li><a href="/wiki/K-gun" class="mw-redirect" title="K-gun">K-gun</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Ship_gun_fire-control_system" title="Ship gun fire-control system">Ship gun fire-control system</a></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/Mark_I_Fire_Control_Computer" title="Mark I Fire Control Computer">Mark I Fire Control Computer</a></li> <li><a href="/wiki/Mark_8_Fire_Control_Computer" title="Mark 8 Fire Control Computer">Mark 8 Fire Control Computer</a></li> <li><a href="/w/index.php?title=Mark_37_Fire_Control_Computer&action=edit&redlink=1" class="new" title="Mark 37 Fire Control Computer (page does not exist)">Mark 37 Fire Control Computer</a></li> <li><a href="/wiki/Torpedo_Data_Computer" title="Torpedo Data Computer">Torpedo Data Computer</a></li></ul> </div></td></tr></tbody></table></div>    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