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In the US Navy they were referred to as 4.7"/50 Mark 3 Armstrong, or as a "large case" gun, to help distinguish them from the additional earlier "small case" 4.7"/47 Mark 1 and 4.7"/42 Mark 2 guns that had been purchased from
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in the 1890s. Sometime after 1906 two other 4.7" guns were purchased and designated as Mark 4's but no other details survive. By 1924 all of these guns had been "surveyed and condemned" and taken out of service.
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protected cruisers that the US Navy had purchased from the United
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Bluejackets Manual, 1917, 4th revision: US Navy 14-inch Mark 1 gun
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designed and built in the United
Kingdom for use in the two
549:"United States of America 4.7"/50 (12 cm) Mark 3 Armstrong"
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48:introducing citations to additional sources
518:Mark 3: 4 × 4.7"/50 caliber (removed 1903)
501:Mark 3: 4 × 4.7"/50 caliber (removed 1903)
438:caliber guns. These guns were relocated to
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356:9,900-yard (9,053 m) at 20° elevation
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38:Relevant discussion may be found on the
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289:231.1 in (5.87 m) bore (48.9
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446:, in 1907, to guard the entrance to
122:4.7"/50 caliber Mark 3 Armstong Gun
521:Mark 1: 4 × single CP type mounts
504:Mark 1: 4 × single CP type mounts
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415:. They were based on the British
138:used in Brazilian fortifications.
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59:"4.7-inch/50-caliber Mark 3 gun"
31:relies largely or entirely on a
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591:Naval guns of the United States
434:were removed and replaced with
353:Maximum firing range
348:2,215 ft/s (675 m/s)
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113:Naval gun *Coastal defence gun
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270:4,200 lb (1,900 kg)
426:In 1903 the eight guns from
364:4.7"/50 caliber Armstong gun
278:236.2 in (6.00 m)
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318:4.724 inches (120 mm)
551:. Navweaps. 30 April 2013
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161:Place of origin
134:4.7"/50 Mark 3 guns from
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442:on Grande Island in the
436:5-inch (127 mm)/50
308:45 lb (20 kg)
397:The Mark 3 was a 48.9
334:Rate of fire
338:5–6 rounds per minute
417:4.7-inch Gun Mark IV
413:Spanish–American War
387:Spanish–American War
344:Muzzle velocity
204:Spanish–American War
44:improve this article
154:Coastal defence gun
467:Vickers & Sons
372:protected cruisers
368:United States Navy
210:Production history
194:United States Navy
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136:Almirante Barroso
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100:December 2017
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55:Find sources:
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33:single source
29:This article
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553:. Retrieved
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286: length
233:Manufacturer
182:Used by
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495:New Orleans
459:World War I
452:armed yacht
444:Philippines
428:New Orleans
407:New Orleans
385:during the
376:New Orleans
328:−3° to +20°
246: built
585:Categories
528:References
487:Gun Mount
70:newspapers
510:USS
493:USS
448:Subic Bay
440:Fort Wint
324:Elevation
177:1895–1924
149:Naval gun
40:talk page
399:calibers
291:calibers
254:Variants
225:Designed
215:Designer
457:during
314:Caliber
84:scholar
555:28 May
512:Albany
455:Eileen
432:Albany
409:-class
393:Design
382:Albany
284:Barrel
275:Length
257:Mark 3
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481:Ship
421:hoops
304:Shell
91:JSTOR
77:books
557:2016
430:and
379:and
362:The
267:Mass
228:1885
200:Wars
144:Type
63:news
370:'s
244:No.
46:by
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88:·
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