362:
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338:) and was capable of firing 2 to 3 times a minute. At maximum elevation of 15° it could fire an 870 lb (390 kg) shell approximately 20,000 yd (18,000 m). However, this range was largely academic at the time the gun was initially designed, as no rangefinding techniques had yet been developed capable of accurately firing beyond about 10,000 yd (9,100 m). With an initial muzzle velocity of 2,700 ft/s (820 m/s), the gun had a barrel life of 175 rounds, and was capable of firing either
42:
793:
554:. In this capacity, the maximum range of the Mark 5 increased to 30,000 yd (27,000 m), due to the greater elevation that was possible. These guns were not deployed by the US Army, and some were sold to Brazil, where they might still be in use. In Greek service, the guns removed from
529:
s guns it was discovered that copper deposits from the driving bands on the projectiles had narrowed the bores of the barrel enough that it caused the projectiles to slow down. This problem, known as "copper choke", allowed the pressure in the barrel to increase to dangerous levels.
509:
View looking aft along the port side, showing barrel of burst 12-inch gun on deck with the gun's rear portion in Turret # 2. Photographed at the
Philadelphia Navy Yard, Pennsylvania, 25 September 1916. Note holes in superstructure and in the "cage" foremast caused by this
384:. All told, the Mark 5 would arm 14 battleships of five different classes, making it the most-used main gun in American battleship history. Despite this distinction, the only Mark 5 guns ever to be
349:
side armor at 6,000 yd (5,500 m), 12.2 in (310 mm) at 9,000 yd (8,200 m), and 9.9 in (250 mm) at 12,000 yd (11,000 m). By comparison the
658:
766:
380:
The Mark 5 entered service in 1906 and remained the primary battleship gun for all
American battleships commissioned before 1912, at which point it was replaced by the
534:
heads, to remove these deposits, were issued for all guns 12-inch and larger throughout the fleet. The lapping heads were later replaced by wire and pisaba brushes.
1114:
353:
Mark 4 it replaced could only penetrate 14.6 in (370 mm), 11.6 in (290 mm), and 9.4 in (240 mm) at those distances, respectively.
424:
306:
The 12-inch (305 mm)/45-caliber Mark 5 naval gun was designed as an incremental improvement upon the preceding
American naval gun, the
17:
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118:
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In
American service, the Mark 5 remained afloat (albeit in dwindling numbers) until 1930, when the last guns were removed from the
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to allow for improved muzzle velocity, range, and penetrating power. Designed to the specifications of the
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the Mark 5 would cross the
Atlantic for duty aboard two of the American battleships serving in the
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in
Brooklyn, New York, representative of the general type of coast artillery guns the fort had.
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in 1922, many of the Mark 5 guns in service were removed from sea duty and transferred to the
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blew out her left hand gun in turret No. 2 during target practice. After an investigation of
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battleships, the Mark 5 continued in service aboard the first generation of
American
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427:, it was never fired in any engagement, as no battles were fought with the German
361:
741:"Definitions and Information about Naval Guns Part 3 - Miscellaneous Definitions"
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As designed, the Mark 5 was capable of penetrating 16.6 in (420 mm) of
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Mark 4. As such, it was a very similar weapon, having been lengthened by 5
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that first entered service in 1906. Initially designed for use with the
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659:"Washington Navy Yard: History of the Naval Gun Factory, 1883-1939"
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were actually in Greek, and not
American, service. The ex-
562:, where they helped to defend the approaches to the
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266:30,000 yd (27,432 m) at 47° elevation
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575:Weapons of comparable role, performance and era
264:20,000 yd (18,288 m) at 15° elevation
593:Type 41 12-inch (305 mm) /45 caliber naval gun
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434:The five classes armed with the Mark 5 were:
197:45 ft 0 in (13.72 m) bore (45
413:Allied Intervention in the Russian Civil War
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695:. Naval Historical Center. 27 March 2001
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630:"USA 12"/45 (30.5cm) Mark 5 and Mark 6"
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14:
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425:6th Battle Squadron of the Grand Fleet
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769:from the original on 24 February 2009
721:from the original on 16 February 2009
717:. globalsecurity.org. 27 April 2005.
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636:from the original on 19 February 2009
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481:in compliance with the terms of the
318:, the Mark 5 was constructed at the
34:12-inch/45-caliber Mark 5 Naval Gun
493:A Mark 5 Mod 8 gun is displayed at
24:
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25:
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763:"Coastal Defence Forces (Brazil)"
628:DiGiulian, Tony (11 April 2016).
958:5"/51 caliber Mark 7–8 and 14–15
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356:
261:Effective firing range
46:Mark 5 gun being hoisted aboard
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1138:Naval guns of the United States
558:were emplaced on the island of
834:American naval weapons of the
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256:2,700 ft/s (820 m/s)
18:12"/45 caliber Mark 5 gun
13:
1:
765:. janes.com. 13 August 2008.
599:
542:Following the signing of the
373:
365:After six Mark 5 guns aboard
326:Measurements and capabilities
277:12-inch/45-caliber Mark 5 gun
693:"Greek Navy Ships -- Lemnos"
411:in 1914, fought in both the
7:
878:13"/35 caliber Mark 1 and 2
863:12"/40 caliber Mark 3 and 4
858:12"/35 caliber Mark 1 and 2
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514:During the summer of 1916,
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488:
10:
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983:8"/35 caliber Mark 3 and 4
973:6"/50 caliber Mark 6 and 8
963:6"/30 caliber Mark 2 and 3
953:5"/50 caliber Mark 5 and 6
917:6"/50 caliber Mark 6 and 8
907:6"/30 caliber Mark 2 and 3
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72:Place of origin
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679:Friedman (1978), p. 153.
226:12 in (305 mm)
1094:.50 caliber machine gun
544:Washington Naval Treaty
342:or common projectiles.
1103:Anti-submarine weapons
1016:4"/40 caliber Mark 1–6
948:5"/40 caliber Mark 2–4
743:. Navweaps. 7 May 2016
511:
377:
330:The Mark 5 weighed 53
320:U.S. Naval Gun Factory
308:12-inch/40-caliber gun
302:Design and development
242:Rate of fire
164:U.S. Naval Gun Factory
1060:Anti-aircraft weapons
932:10"/40 caliber Mark 3
873:12"/50 caliber Mark 7
868:12"/45 caliber Mark 5
853:10"/30 caliber Mark 2
715:"BB-30 Florida Class"
508:
382:12"/50-caliber Mark 7
364:
1115:8"/23 caliber Mark 7
988:8"/45 caliber Mark 6
978:7"/45 caliber Mark 2
968:6"/40 caliber Mark 4
927:8"/45 caliber Mark 6
922:8"/30 caliber Mark 2
912:6"/40 caliber Mark 4
800:at Wikimedia Commons
581:305mm/45 Modèle 1906
322:in Washington, D.C.
268:As coastal artillery
252:Muzzle velocity
595:Japanese equivalent
483:London Naval Treaty
409:Royal Hellenic Navy
941:Secondary armament
798:12"/45 caliber gun
661:. history.navy.mil
589:British equivalent
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351:12-inch/40-caliber
316:Bureau of Ordnance
146:Bureau of Ordnance
137:Production history
98:United States Navy
1148:Coastal artillery
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796:Media related to
583:French equivalent
552:coastal artillery
538:Coastal Artillery
417:Greco-Turkish War
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124:Greco-Turkish War
119:Russian Civil War
16:(Redirected from
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194: length
160:Manufacturer
129:World War II
93:Used by
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773:13 February
725:11 February
699:17 November
550:for use as
446:Mississippi
440:Connecticut
421:World War I
391:Mississippi
286:Connecticut
236:-5° to +15°
114:World War I
50:Connecticut
1132:Categories
747:18 October
665:8 November
640:18 October
600:References
415:, and the
332:short tons
180:short tons
101:Greek Navy
1031:Submarine
998:Destroyer
548:U.S. Army
510:accident.
431:in 1918.
334:(48
281:naval gun
232:Elevation
182:(48
88:1906–1930
62:Naval gun
48:USS
27:Naval gun
1004:armament
767:Archived
719:Archived
634:Archived
570:See also
517:Michigan
501:Incident
489:Survivor
479:Floridas
461:Delaware
369:Delaware
312:calibers
199:calibers
152:Designed
142:Designer
1002:gunboat
898:Cruiser
532:Lapping
469:Florida
246:2–3 rpm
222:Caliber
560:Aegina
556:Lemnos
471:-class
463:-class
455:-class
448:-class
442:-class
404:Lemnos
398:Kilkis
393:-class
288:-class
192:Barrel
1110:Y-gun
527:'
376:1913.
212:Shell
1033:guns
1000:and
775:2009
749:2016
727:2009
701:2009
667:2015
642:2016
401:and
367:USS
275:The
175:Mass
155:1903
108:Wars
58:Type
290:of
178:53
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650:^
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374:c.
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827:e
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184:t
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