44:
323:, could only throw an 870-pound (390 kg) shell 24,000 yards (21,946 m), at an elevation of 15° The Mark 8's significant improvement in firing weight and range over the Mark 7 gave it the honor of "by far the most powerful weapon of its caliber ever placed in service." In fact, as a result of the decision to fire "super heavy"
297:-class ships each had nine Mark 8 guns mounted in three triple (3-gun) turrets, with two turrets forward and one aft, a configuration known as "2-A-1". Only two vessels of the class were completed, making them the only applications of the Mark 8 12"/50 caliber gun.
232:. The gun, like the "large cruiser" that mounted it, was intended to fill the gap between US "heavy cruisers" (6-8") and US battleships (14-16"). The name describes the size of the shells, 12 inches in diameter, and the length of the bore in
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shell 38,573 yards (35,271 meters) at an elevation of 45°. The previous 12" gun manufactured for the U.S. Navy was the Mark 7 version, used in the World War I era
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and was capable of an average rate of fire of 2.4–3 rounds a minute. It could throw a 1,140 lb. (517.093 kg) Mark 18
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projectiles, the Mark 8's deck plate penetration was better and the side belt armor penetration equal to the older (but larger)
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corporations. They were then sent to the Naval Gun
Factory for processing, which was followed by a trip to
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firing her 12"/50 guns during a training session sometime in 1944–1945.
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in
Washington D.C., the forgings for the Mark 8 were manufactured at the
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The barrel life of the Mark 8 guns was 344 rounds, 54 more than the
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The Mark 8 weighed 121,856 pounds (55,273 kg) including the
540:
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The gun was first deployed in 1944, on the lead ship of the
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were sent back to the Naval Gun
Factory to be finished.
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was tested in 1942. Unlike previous guns, such as the
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501:Dulin Jr. Robert O.; Garzke Jr. William H. (1976).
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450:"United States of America 16"/50 (40.6 cm) Mark 7"
259:, which were completely made and assembled at the
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8:
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275:until they were 65% complete. Finally, the
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977:Weapons and ammunition introduced in 1944
477:"United States of America 12"/50 Mark 7"
403:"United States of America 12"/50 Mark 8"
374:
507:. Naval Institute Press. p. 190.
7:
427:1961 is the year the last remaining
244:The gun was designed in 1939, and a
456:from the original on 7 January 2009
448:DiGiulian, Tony (7 February 2008).
409:from the original on 7 January 2009
25:
483:from the original on 30 June 2011
601:16"/45 caliber Mark 1, 5 & 8
161:51 feet (15.54 m) bore (50
42:
962:Naval guns of the United States
200:2.4–3.0 rounds per minute
567:American naval weapons of the
205:Maximum firing range
18:12"/50 caliber Mark 8 gun
1:
936:Mark 37 Fire Control Computer
931:Mark 8 Fire Control Computer
926:Mark I Fire Control Computer
918:Ship gun fire-control system
208:38,573 yards (35,271 m)
140:Bethlehem Steel Corporation
993:
967:World War II naval weapons
180:1,140 pounds (520 kg)
36:12"/50 caliber Mark 8 gun
358:16"/50 caliber Mark 7 gun
336:16"/50 caliber Mark 7 gun
216:12"/50 caliber gun Mark 8
190:12 inches (304.8 mm)
169:
68:Place of origin
41:
837:.50 caliber machine gun
885:Anti-submarine weapons
196:Rate of fire
941:Torpedo Data Computer
778:Anti-aircraft weapons
686:5"/54 caliber Mark 16
660:12"/50 caliber Mark 8
650:6"/47 caliber Mark 16
621:18"/47 caliber Mark A
616:16"/50 caliber Mark 7
611:16"/45 caliber Mark 6
606:16"/50 caliber Mark 2
586:12"/50 caliber Mark 7
435:, was decommissioned.
240:Design and production
236:(50 bore diameters).
250:16"/45 caliber guns
719:QF 4 inch Mark XIX
669:Secondary armament
363:14"/50 caliber gun
329:14"/50 caliber gun
273:Watervliet Arsenal
144:Watervliet Arsenal
115:Production history
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475:DiGiulian, Tony.
401:DiGiulian, Tony.
261:Naval Gun Factory
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132:Naval Gun Factory
16:(Redirected from
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972:305 mm artillery
700:destroyer escort
569:Second World War
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479:. Navweaps.com.
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405:. Navweaps.com.
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791:1.1"/75 caliber
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269:Bethlehem Steel
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222:mounted on the
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84:1944–1961
81:In service
76:Service history
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786:20 mm Oerlikon
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705:patrol frigate
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591:14"/45 caliber
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533:External links
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150:Specifications
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830:Light weapons
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822:
821:5"/38 caliber
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816:5"/25 caliber
814:
812:
811:3"/50 caliber
809:
807:
806:3"/23 caliber
804:
802:
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769:
768:6"/53 caliber
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764:
763:5"/51 caliber
761:
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758:5"/25 caliber
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753:4"/50 caliber
751:
749:
748:3"/50 caliber
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730:
729:5"/38 caliber
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725:
724:4"/50 caliber
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714:3"/50 caliber
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681:5"/51 caliber
679:
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676:5"/38 caliber
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656:
655:8"/55 caliber
653:
651:
648:
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645:6"/53 caliber
643:
641:
640:5"/38 caliber
638:
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633:main armament
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579:main armament
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514:1-55750-174-2
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431:-class ship,
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338:found in the
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71:United States
70:
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58:
53:
52:
45:
40:
33:
27:
19:
801:40 mm Bofors
796:QF 1-pounder
659:
577:Capital ship
518:. Retrieved
503:
496:
485:. Retrieved
470:
458:. Retrieved
432:
428:
423:
411:. Retrieved
340:
333:
315:
304:
301:Measurements
294:
289:
283:
281:
254:
252:used on the
243:
233:
224:
215:
213:
158: length
128:Manufacturer
109:World War II
93:
89:Used by
50:
26:
875:21" Mark 18
870:21" Mark 15
865:21" Mark 14
860:21" Mark 10
346:battleships
321:battleships
956:Categories
855:21" Mark 8
520:11 January
487:2011-07-21
369:References
293:. The two
898:Mousetrap
847:Torpedoes
739:Submarine
696:Destroyer
460:7 January
413:7 January
288:USS
246:prototype
220:naval gun
218:was a US
63:Naval gun
49:USS
29:Naval gun
893:Hedgehog
707:armament
481:Archived
454:Archived
407:Archived
352:See also
234:calibers
120:Designed
99:cruisers
631:Cruiser
316:Wyoming
286:class,
265:Midvale
230:cruiser
186:Caliber
136:Midvale
511:
429:Alaska
343:-class
318:-class
307:breech
295:Alaska
290:Alaska
284:Alaska
227:-class
225:Alaska
156:Barrel
96:-class
94:Alaska
908:K-gun
903:Y-gun
257:class
176:Shell
741:guns
703:and
522:2009
509:ISBN
462:2009
433:Guam
415:2009
341:Iowa
267:and
214:The
138:and
123:1939
105:Wars
60:Type
51:Guam
163:cal
958::
698:,
440:^
377:^
348:.
331:.
142:,
134:,
560:e
553:t
546:v
524:.
490:.
464:.
417:.
165:)
20:)
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