580:
430:
562:
546:
44:
322:
414:
480:(15,520 m) fired at the new gun muzzle velocity of 2,650 fps (808 m/s). The 40-degree elevation was justified on the grounds that destroyers would be screening the battle-fleet during aerial attack, and 40 degrees elevation was adequate to engage aircraft that were concentrating their attack on other ships.
513:
introduced the CP (central pivot) single Mark XXII mounting for the QF Mark XII 4.7 in gun. This new mounting had a shield with a sharply raked front, to allow increased elevation (to 55 degrees), contrasting noticeably with the vertical front of the previous CP Mark XVIII, and easily differentiated
491:
It became clear at once that in an attack from the air in narrow waters flanked by mountains, the cards were held by the aircraft. There was too little sea-room for full freedom of manoeuvre, and the aircraft's approach was screened by the rock walls. As often as not, when they did come into view it
906:
Hodges, Tribal Class
Destroyers, p32: Diagram of High Level Bomber Attack: A 240 mph target, at 12 thousand feet altitude could expect to be under fire for about 58 seconds, from the time it enters the effective range of the FKC until it flies to within the minimum range of a 4.7-inch gun
479:
was able to fire "...five rounds in 17 seconds." The Mk XII gun fired a 50 lb (23 kg) shell and used a separate cartridge, with shell and cartridge being loaded via a loading tray, with power ramming, elevation, and traverse. The maximum range at 40 degrees elevation was 16,970 yards
500:, and lies forty miles from the entrance, off which we arrived on the 24th April. The daylight passage of the convoy and escort through this waterway, speed five knots, on a steady course and with mountains rising steeply either side, presented an alluring invitation to enemy aircraft.
504:
attacks persisted to the end, but the fire of the destroyers, although limited to an elevation of forty degrees, was enough to keep the enemy just too high for their standard of marksmanship. Not a ship received a direct hit, though some were damaged by the splinters from near
579:
533:
in 1943. The new 4.5 inch guns all had 55-degree elevation mounts and fired a shell slightly heavier than that of 4.7-inch Mk IX and XII guns, although slightly lighter than that fired by the 4.7 inch Mk XI gun.
1532:
1159:
1240:
1176:
1167:
1015:
1172:
1036:
1163:
561:
907:
elevated to 55 degrees. A Tribal class destroyer would be able to engage the same target for about 37 seconds with a 4.7-inch Mk XII gun elevated to 40 degrees.
961:
British
Destroyers: A History of Development, 1892–1953; Drawn by Admiralty Permission From Official Records & Returns, Ships' Covers & Building Plans
1522:
1008:
1517:
487:
describes the use of Tribal-class destroyer mounted Mk XII guns against aircraft during the campaign in
Norwegian waters, from April to June 1940:
1259:
1195:
1001:
840:"Salvos fired about 180 in all...drill to guns very good, great part of the action a loading interval of about 5 seconds was achieved..."
545:
1317:
1215:
1124:
526:
519:
1512:
949:
930:
1491:
1220:
472:(FKC) fire control computer. Typical maximum rate of fire was twelve rounds per gun, per minute. During gunnery trials in 1930,
1460:
1297:
1249:
1190:
429:
1322:
449:
1149:
453:
43:
1230:
1144:
1098:
1093:
1064:
492:
was at such an angle that our 4.7-inch guns, whose maximum elevation was only forty degrees, could not reach them...
1312:
1210:
1205:
1139:
1134:
1527:
1386:
1200:
1074:
1069:
1045:
751:
376:
1307:
1119:
403:
367:, and were exported to many countries after World War II as the destroyers they were mounted on were sold off.
993:
1439:
1381:
1376:
1371:
1366:
1343:
1185:
510:
407:
357:
1292:
1129:
587:
569:
552:
399:
388:
384:
380:
339:
282:
275:
240:
236:
110:
1455:
1434:
1429:
1287:
1269:
257:
102:
1480:
1475:
1470:
1465:
757:
1403:
1348:
1277:
1024:
392:
326:
263:
118:
829:
345:
106:
98:
473:
469:
229:
222:
216:
456:
of 1938. This mounting limited the maximum elevation to 40 degrees, but all twin CP Mk XIX were
321:
1408:
964:
945:
926:
835:
530:
1302:
1282:
1254:
457:
419:
49:
17:
484:
302:
1413:
134:
130:
126:
413:
1506:
1110:
1084:
988:
501:
497:
468:, to allow the mountings to be fired against aircraft while being controlled by the
1055:
1028:
364:
292:
144:
122:
982:
448:
The almost-identical Mk XII gun was deployed in twin mountings CP Mk XIX on the
434:
114:
493:
353:
196:
148:
94:
968:
1338:
360:
349:
63:
406:
of 1930 and on most subsequent destroyer classes up to and including the
1358:
247:
203:
754: : equivalent German destroyer gun, firing slightly heavier shell
270:
1485:
760: : approximate US equivalent, firing a slightly heavier shell
428:
412:
320:
997:
989:
Britain 4.7"/45 (12 cm) QF Mark IX 4.7"/45 (12 cm) QF Mark XII
48:
Two twins 4.7 inch Mk XII guns on CP Mk XIX mounting on
518:
was the exception in this respect, being fitted with
181:
3.238–3.245 long tons (3,290–3,297 kg) (Mk XII)
1448:
1422:
1395:
1357:
1331:
1268:
1239:
1158:
1107:
1083:
1054:
1035:
311:
301:
291:
281:
269:
256:
246:
228:
215:
195:
185:
179:
2.963–2.984 long tons (3,011–3,032 kg) (Mk IX)
175:
170:
159:
154:
140:
90:
82:
77:
69:
59:
34:
865:The Royal Navy, 1930-2000: innovation and defence
444:is clearly visible on the right, at waist height.
375:These guns succeeded the similar World War I-era
1533:World War II naval weapons of the United Kingdom
746:Weapons of comparable role, performance and era
522:; a twin mounting forward and two singles aft.
925:. Annapolis, Maryland: Naval Institute Press.
781:
779:
777:
1009:
514:the S class onwards from their predecessors.
8:
525:The 4.7 inch calibre was superseded by the
1016:
1002:
994:
31:
398:Mark IX was deployed in single mountings
332:with gunners sheltering behind the shield
202:Bore: 212.58 in (5.40 m) L/45 (
940:Hodges, Peter; Friedman, Norman (1979).
600:
983:Illustration of a 4.7 inch single mount
773:
541:
191:224.08 in (5.69 m) (Mk XII)
7:
391:in brass cases and a new horizontal
189:220.62 in (5.60 m) (Mk IX)
315:16,970 yards (15,520 m) at 40°
36:QF 4.7 inch Mark IX & Mark XII
25:
1481:5-inch 51 caliber Mark 8 gun (US)
1476:4-inch 50 caliber Mark 9 gun (US)
944:. London: Conway Maritime Press.
460:mountings and were equipped with
1523:Naval guns of the United Kingdom
942:Destroyer Weapons of World War 2
578:
560:
544:
42:
1518:World War II anti-aircraft guns
1344:.50 Vickers Mk III machine gun
1293:QF 2-pounder "pom-pom" Mk VIII
787:Naval Weapons of World War Two
312:Maximum firing range
307:2,650 ft/s (810 m/s)
160:
1:
923:Naval Weapons of World War II
884:, London, 1960, p.40 and 44.
730:11.58 tons / 11,766 kg
710:22.93 tons / 23,298 kg
572:(semi armour-piercing) shell
352:which armed the majority of
1488:depth charge projector (US)
1260:QF 4-inch Mk XII & XXII
1226:QF 4.7-inch Mk IX & XII
736:1.813 tons / 1,842 kg
696:1.163 tons / 1,182 kg
690:9.544 tons / 9,697 kg
670:8.829 tons / 8,971 kg
650:8.829 tons / 8,971 kg
496:is approached through the
18:QF 4.7 inch Mk IX naval gun
1549:
1471:3-inch 50 caliber gun (US)
1466:3-inch 23 caliber gun (US)
963:. London: Seeley Service.
869:Managing the aerial threat
716:2.55 tons / 2,591 kg
630:8.64 tons / 8,781 kg
433:A twin Mk.XII mounting on
297:about 15 rounds per minute
262:Semi-automatic horizontal
252:4.724 inches (120 mm)
1250:QF 12-pounder 12 cwt Mk V
1191:QF 12-pounder 12 cwt Mk V
752:12.7 cm SK C/34 naval gun
348:, 4.7-inch (120 mm)
235:50 pounds (22.7 kg)
210:
166:742 (Mk IX); 372 (Mk XII)
70:Place of origin
41:
1513:Naval anti-aircraft guns
959:March, Edgar J. (1966).
813:Destroyer weapons of WW2
800:Destroyer weapons of WW2
727:-10° to +55°
707:-10° to +40°
687:-10° to +40°
676:0.85 tons / 864 kg
667:-10° to +40°
647:-10° to +30°
636:0.85 tons / 864 kg
627:-10° to +30°
586:Australian gunners with
1449:Foreign-sourced weapons
921:Campbell, John (1985).
733:0.375 in / 9.5 mm
693:0.125 in / 3.2 mm
673:0.125 in / 3.2 mm
633:0.144 in / 3.7 mm
590:and shell, January 1944
466:Mk V Fuze Setting Trays
452:destroyers of 1936 and
371:Description and history
1396:Anti-submarine weapons
1339:.303 Lewis machine gun
1108:Secondary armament and
507:
462:Fuze Setting Pedestals
445:
426:
333:
293:Rate of fire
111:Royal Netherlands Navy
1435:Vickers K machine gun
1270:Anti-aircraft weapons
1027:naval weapons of the
811:Hodges and Friedman,
798:Hodges and Friedman,
489:
442:Fuse Setting Pedestal
432:
416:
324:
103:Royal Australian Navy
1423:Small craft armament
1404:depth charge thrower
1349:QF 3-pounder Vickers
1278:Unrotated projectile
1025:British Commonwealth
418:Twin Mk XII guns on
342:Mark IX and Mark XII
325:Single Mk IX gun on
303:Muzzle velocity
119:Royal Norwegian Navy
1492:Mark 8 torpedo (US)
1323:QF 4.7-inch Mk VIII
1186:QF 6-pounder 10 cwt
107:Royal Hellenic Navy
99:Royal Canadian Navy
1150:BL 6-inch Mk XXIII
895:British Destroyers
852:British Destroyers
826:British Destroyers
610:Weight w/o shield
531:Z-class destroyers
470:Fuze Keeping Clock
454:J, K and N classes
446:
440:. The cylindrical
427:
404:A-class destroyers
395:breech mechanism.
334:
287:Varied by mounting
155:Production history
1500:
1499:
1231:QF 4.7-inch Mk XI
1221:BL 4.7-inch Mk II
1145:BL 6-inch Mk XXII
1099:BL 8-inch Mk VIII
1094:BL 7.5-inch Mk VI
867:, p19-41:, Pugh,
863:Harding, editor,
758:5"/38 caliber gun
743:
742:
613:Shield Thickness
597:Gun Mounting Data
319:
318:
221:Separate loading
16:(Redirected from
1540:
1528:120 mm artillery
1430:Molins 6-pounder
1313:QF 4-inch Mk XVI
1303:QF 3-inch 20 cwt
1283:Holman Projector
1255:QF 3-inch 20 cwt
1211:QF 4-inch Mk XIX
1206:QF 4-inch Mk XVI
1140:BL 6-inch Mk XII
1029:Second World War
1018:
1011:
1004:
995:
987:Tony DiGiulian,
972:
955:
936:
908:
904:
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855:
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842:
822:
816:
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796:
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527:4.5 inch calibre
520:4.5 inch calibre
162:
46:
37:
32:
21:
1548:
1547:
1543:
1542:
1541:
1539:
1538:
1537:
1503:
1502:
1501:
1496:
1444:
1440:18-inch torpedo
1418:
1391:
1372:21-inch Mk VIII
1353:
1327:
1264:
1235:
1201:BL 4-inch Mk IX
1196:QF 4-inch Mk IV
1171:
1154:
1109:
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1050:
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1022:
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882:Action This Day
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619:Number of guns
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588:cartridge cases
583:
574:
573:
565:
556:
555:
549:
540:
485:Sir Philip Vian
425:
379:, changing the
377:BL 4.7 inch gun
373:
276:Hydro-pneumatic
211:
190:
180:
147:
133:
129:
125:
121:
117:
113:
109:
105:
101:
97:
83:In service
78:Service history
55:
35:
30:
23:
22:
15:
12:
11:
5:
1546:
1544:
1536:
1535:
1530:
1525:
1520:
1515:
1505:
1504:
1498:
1497:
1495:
1494:
1489:
1483:
1478:
1473:
1468:
1463:
1458:
1456:20 mm Oerlikon
1452:
1450:
1446:
1445:
1443:
1442:
1437:
1432:
1426:
1424:
1420:
1419:
1417:
1416:
1411:
1406:
1399:
1397:
1393:
1392:
1390:
1389:
1387:24.5-inch Mk I
1384:
1379:
1374:
1369:
1367:21-inch Mk VII
1363:
1361:
1355:
1354:
1352:
1351:
1346:
1341:
1335:
1333:
1329:
1328:
1326:
1325:
1320:
1315:
1310:
1308:QF 4-inch Mk V
1305:
1300:
1295:
1290:
1288:20 mm Oerlikon
1285:
1280:
1274:
1272:
1266:
1265:
1263:
1262:
1257:
1252:
1246:
1244:
1237:
1236:
1234:
1233:
1228:
1223:
1218:
1213:
1208:
1203:
1198:
1193:
1188:
1182:
1180:
1156:
1155:
1153:
1152:
1147:
1142:
1137:
1132:
1127:
1122:
1120:QF 4-inch Mk V
1116:
1114:
1105:
1104:
1102:
1101:
1096:
1090:
1088:
1081:
1080:
1078:
1077:
1072:
1067:
1061:
1059:
1052:
1051:
1049:
1048:
1042:
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998:
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977:External links
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880:Vian, Philip,
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402:Mk XIV on the
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171:Specifications
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135:Brazilian Navy
131:Argentine Navy
127:Dominican Navy
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1382:21-inch Mk XI
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1113:main armament
1112:
1111:light cruiser
1106:
1100:
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1087:main armament
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1085:Heavy cruiser
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498:Romsdal Fiord
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89:
85:
81:
76:
72:
68:
65:
62:
58:
54:
53:
45:
40:
33:
27:
19:
1461:40 mm Bofors
1402:Thornycroft
1377:21-inch Mk X
1298:40 mm Bofors
1225:
1130:QF 5.25-inch
1056:Capital ship
960:
941:
922:
915:Bibliography
902:
894:
889:
881:
876:
868:
864:
859:
851:
846:
839:
830:
825:
820:
812:
807:
799:
794:
786:
763:
524:
515:
508:
490:
482:
475:
465:
461:
458:dual-purpose
450:Tribal-class
447:
441:
436:
421:
397:
374:
365:World War II
358:Commonwealth
337:
335:
328:
223:cased charge
199: length
145:World War II
123:Turkish Navy
91:Used by
51:
26:
1318:QF 4.5-inch
1216:QF 4.5-inch
1160:Minesweeper
1135:BL 5.5-inch
1125:QF 4.5-inch
389:separate QF
329:Assiniboine
163: built
115:Polish Navy
1507:Categories
1075:BL 16-inch
1070:BL 15-inch
1065:BL 14-inch
1046:BL 15-inch
785:Campbell,
768:References
607:Elevation
538:Ammunition
494:Aandalsnes
420:HMAS
381:cartridges
361:destroyers
354:Royal Navy
350:naval guns
327:HMCS
149:Korean War
95:Royal Navy
86:1928–1970?
1359:Torpedoes
1241:Submarine
1177:Destroyer
969:164893555
831:Kimberley
802:, P95-96.
604:Mounting
553:Cartridge
474:HMS
435:HMS
410:of 1942.
338:4.7 inch
283:Elevation
64:Naval gun
50:HMS
29:Naval gun
1409:Hedgehog
1179:armament
1168:Corvette
897:, p.401.
828:, P358,
713:unknown
684:CPXVIII
656:unknown
653:unknown
483:Admiral
476:Basilisk
344:were 45-
1173:Frigate
1037:Monitor
893:March,
850:March,
824:March,
724:CPXXII
664:CPXVII
568:Mk IIA
529:on the
511:S class
505:misses.
502:Junkers
437:Javelin
408:R class
346:calibre
248:Calibre
967:
948:
929:
854:, P264
836:Narvik
815:, p21.
789:, p48.
704:CPXIX
644:CPXVI
624:CPXIV
570:S.A.P.
516:Savage
271:Recoil
258:Breech
232:weight
197:Barrel
186:Length
52:Kelvin
1486:Y-gun
1414:Squid
1164:Sloop
422:Nizam
383:from
230:Shell
217:Shell
1243:guns
1175:and
1039:guns
965:OCLC
946:ISBN
927:ISBN
509:The
356:and
336:The
176:Mass
141:Wars
60:Type
834:at
464:or
363:in
239:or
237:SAP
204:cal
161:No.
1509::
1166:,
1162:,
838::
776:^
739:1
719:2
699:1
679:1
659:1
639:1
400:CP
385:BL
340:QF
241:HE
1170:,
1017:e
1010:t
1003:v
971:.
954:.
935:.
871:.
206:)
20:)
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