217:
33:
231:
The shell was fired at the submarine either on the surface or submerged - hence it had attributes of both armour-piercing shell and depth charge. It was designed to first penetrate the submarine's outer hull without breaking up, and then detonate against the inner hull after a 2-second delay,
243:, writing a few years after the gun had gone into service, commented: "This weapon, although not very popular at first, soon, however, proved its value, when employed both from patrol craft and from merchant ships."
232:
destroying the submarine. However the small weight of the shell limited its effectiveness, and the anti-submarine mortar did not become a truly successful weapon until the advent of the multiple-projectile
935:
309:
Standard shell was 100 lb, containing 43 lb TNT. In early 1918 a 500 lb stick bomb containing 250 lb TNT was developed, with a range of 300 yards. Hogg & Thurston 1972, page 148
374:
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224:
The weapon was developed together with other similar devices early in 1917 and went into service in June 1917 in response to
409:
504:
469:
424:
660:
543:
499:
278:
8-inch Mark 7 & Mark 8 - Two
American anti-submarine guns designed late in World War I that never entered service.
216:
691:
619:
609:
599:
584:
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32:
419:
930:
707:
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479:
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722:
247:
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146:
49:
822:
352:
228:. It was mounted on merchant ships and patrol vessels. By 10 December that year, 377 were in service.
766:
756:
604:
878:
339:& L.F. Thurston, British Artillery Weapons & Ammunition 1914–1918. London: Ian Allan, 1972
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126:
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152:
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159:
383:
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80:
914:
555:
450:
387:
336:
205:
90:
809:
110:
639:
275:- A Japanese anti-submarine gun used during the latter half of World War II.
346:
781:
136:
253:
and used to bombard German defences during her participation in the
215:
356:
269:- A Japanese anti-submarine gun used during World War II.
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892:
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145:
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125:
109:
101:
96:
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68:
63:
55:
45:
23:
936:World War I naval weapons of the United Kingdom
319:
317:
315:
368:
8:
220:7.5-inch howitzer HMS Vindictive IWM Q 20555
375:
361:
353:
20:
105:Gun & breech 812 pounds (368 kg)
288:
300:Hogg and Thurston 1972, Pages 148-149
226:German unrestricted submarine warfare
7:
921:Naval weapons of the United Kingdom
164:480 feet per second (146 m/s)
14:
116:Bore 63.75 inches (1.619 m)
31:
570:QF 14-pounder Maxim-Nordenfelt
169:Maximum firing range
1:
347:"The Crisis of the Naval War"
731:QF 2-pounder "pom-pom" Mk II
198:BL 7.5-inch howitzer (naval)
131:HE 100 pounds (45.4 kg)
575:QF 14-pounder Mk I & II
490:EOC 12-inch 45 cal. Mk XIII
323:Jellicoe, 1920. Chapter III
25:BL 7.5-inch naval howitzer
952:
818:Spherical Mk I, II and III
651:QF 12-pounder 12 cwt Mk II
485:BL 12-inch Mk XI & XII
172:2,100 yards (1,920 m)
120:
56:Place of origin
30:
757:.303 Vickers machine gun
630:BL 7.5-inch Mk II – Mk V
510:EOC 14-inch 45 cal. Mk I
273:20 cm/12 short naval gun
267:12 cm/12 short naval gun
190:43 pounds (19.5 kg)
625:BL 6-inch Mk XIII-XVIII
460:Vickers 10-inch 45 cal.
926:Anti-submarine mortars
837:Anti-submarine weapons
772:QF 6-pounder Hotchkiss
762:QF 3-pounder Hotchkiss
680:Merchant ship armament
644:small cruiser armament
553:Secondary armament and
495:BL 13.5-inch Mk I – IV
221:
141:7.5-inch (191 mm)
687:QF 4.7-inch Mk I – IV
386:naval weapons of the
343:Admiral John Jellicoe
241:Admiral John Jellicoe
236:during World War II.
219:
202:anti-submarine mortar
50:Anti-submarine mortar
18:Anti-submarine mortar
767:QF 3-pounder Vickers
605:QF 6-inch Mk I – III
565:QF 12-pounder 18 cwt
283:Notes and references
246:Two were mounted on
160:Muzzle velocity
900:QF 12-pounder 8 cwt
874:Type G Depth charge
869:Type F Depth charge
864:Type E Depth charge
859:Type D Depth charge
854:Type C Depth charge
849:Type B Depth charge
844:Type A Depth charge
790:18-inch Mk V – VIII
465:EOC 10-inch 45 cal.
410:BL 9.2-inch Mk VIII
187:Filling weight
723:Anti-aircraft guns
505:BL 13.5-inch Mk VI
470:BL 12-inch Mk VIII
425:BL 12-inch Mk VIII
420:BL 9.2-inch Mk XII
257:of 23 April 1918.
222:
908:
907:
884:7.5-inch howitzer
823:Vickers Elia mine
692:QF 4.7-inch Mk V*
661:BL 4-inch Mk VIII
544:BL 9.2-inch Mk XI
500:BL 13.5-inch Mk V
405:BL 9.2-inch Mk VI
204:developed during
194:
193:
153:interrupted screw
943:
931:190 mm artillery
736:QF 3-inch 20 cwt
713:QF 4-inch Mk XII
671:BL 4.7-inch Mk I
656:QF 4-inch Mk III
620:BL 6-inch Mk XII
610:BL 6-inch Mk VII
600:BL 5.5-inch Mk I
585:BL 4-inch Mk VII
580:QF 4-inch Mk III
539:BL 9.2-inch Mk X
534:BL 7.5-inch Mk I
525:Armoured cruiser
475:BL 12-inch Mk IX
430:BL 14-inch Mk II
415:BL 9.2-inch Mk X
377:
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349:, published 1920
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776:
745:
717:
708:BL 4-inch Mk XI
696:
675:
666:QF 4-inch Mk IV
643:
634:
615:BL 6-inch Mk XI
595:BL 4-inch Mk IX
554:
548:
519:
515:BL 15-inch Mk I
480:BL 12-inch Mk X
445:
441:BL 18-inch Mk I
436:BL 15-inch Mk I
390:
388:First World War
381:
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328:
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322:
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308:
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299:
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263:
261:Similar weapons
214:
121:
69:In service
64:Service history
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24:
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741:QF 4-inch Mk V
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701:Submarine guns
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590:QF 4-inch Mk V
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384:British Empire
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255:Zeebrugge raid
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97:Specifications
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81:British Empire
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59:United Kingdom
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800:21-inch Mk IV
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795:21-inch Mk II
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750:Light weapons
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558:main armament
557:
556:light cruiser
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527:main armament
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453:main armament
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893:Landing guns
879:Cruiser Mine
451:Capital ship
331:Bibliography
305:
249:
245:
239:Nonetheless
238:
230:
223:
197:
195:
113: length
77:Used by
38:
15:
828:Type H mine
206:World War I
91:World War I
72:1917 - 192?
915:Categories
432:(US built)
250:Vindictive
782:Torpedoes
640:Destroyer
337:I.V. Hogg
234:Hedgehog
396:Monitor
212:History
177:Filling
137:Calibre
147:Breech
111:Barrel
39:Boonah
37:On SS
810:Mines
127:Shell
398:guns
248:HMS
196:The
102:Mass
87:Wars
46:Type
642:and
181:TNT
917::
345:,
314:^
291:^
208:.
376:e
369:t
362:v
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