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Very few Mark XXIII guns and their respective SII mountings were produced (only 31 in total), and only two are known to still exist today:
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Development of the Mark XXIII began in 1942, as a lighter replacement for the
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retained her gun into the 1970s; the last firing was on 2 December 1974.
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that completed after
October 1945. It was also fitted to some
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the 4-in. QF MARK XXIII Gun on 4-in. S2 (Submarine) Mounting
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12,080 yd (11.05 km) 35 lb HE shell at 30 degrees:
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439:"Naval Weapons, Equipment, Fittings & Boats"
153:1,568 lb (711 kg) barrel and breech
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466:Encyclopedia of British Submarines 1901-1955
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412:"Britain - 4"/33 (10.2 cm) QF Mark XXIII"
347:from 1962 to 1966, when the flotilla of
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269:38.5 lb: 1,745 ft/s (532 m/s)
331:Between 1955 and the early 1960s, the
172:132.2 in (3.358 m) bore (33
443:www.feralchicken.co.uk/lambert-plans/
267:35 lb: 1,791 ft/s (546 m/s)
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381:Mark XXIII gun is preserved at the
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521:(John Lambert Plans and Drawings)
487:Whitman, Edward C (Summer 2003).
418:. Tony DiGiulian. 22 October 2008
290:was introduced in late 1945 as a
547:Naval guns of the United Kingdom
469:, Periscope Publishing Limited,
345:Indonesia–Malaysia confrontation
111:Indonesia–Malaysia confrontation
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34:Ordnance QF 4 inch gun Mk XXIII
274:Maximum firing range
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489:"Royal Navy Submarine Museum"
161:137.6 in (3.495 m)
18:QF 4 inch naval gun Mk XXIII
383:Royal Navy Submarine Museum
196:38.5 lb (17.5 kg)
55:Royal Navy Submarine Museum
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257:about 15 rounds per minute
359:and other small vessels.
194:35 lb (15.9 kg)
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78:Place of origin
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463:Akermann, Paul (2002),
311:QF 4-inch gun Mark XXII
305:Development and service
206:4 in (102 mm)
525:HMS Andrew gun removal
253:Rate of fire
527:, 1975 photograph on
517:Technical drawing of
288:4-inch gun Mark XXIII
227:4-0 Inch SII Mounting
445:. John Lambert Plans
317:, but was fitted to
263:Muzzle velocity
370:Surviving examples
326:T-class submarines
237:-10 to +30 degrees
121:Production history
46:Mk XXIII gun from
27:Submarine deck gun
322:-class submarines
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169: length
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355:Indonesian
247:360 degrees
216:horizontal
137: built
541:Categories
393:References
299:submarines
296:Royal Navy
70:Submarine
233:Elevation
94:1945-1974
499:21 March
449:21 March
422:21 March
379:Andrew's
292:deck gun
243:Traverse
224:Carriage
192:Fixed QF
174:calibres
126:Produced
115:Cold War
72:deck gun
387:Gosport
349:Amphion
341:casings
333:Amphion
320:Amphion
202:Calibre
129:1945-46
59:Gosport
53:at the
529:Flickr
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363:Andrew
212:Breech
167:Barrel
158:Length
50:Andrew
357:junks
187:Shell
501:2014
471:ISBN
451:2014
424:2014
377:HMS
361:HMS
339:and
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283:The
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107:Wars
67:Type
48:HMS
135:No.
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401:^
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286:QF
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