42:
333:
to test the fully automatic firing of the artillery. The next version (Mark 24) was exactly the same despite an overall weight loss of the actual gun. The Mark 25's improvement was based on a rapid-fire horizontal-wedge breech. The final, and service ready, version incorporated all of these
305:
Marks 27, 33, and 34, increasing the barrel length by 60 in (1.5 m) and improving range by over 5,000 ft (1,500 m) and elevation by 5 degrees. The 3-inch round was chosen because it was the smallest caliber ammunition that could be fitted with a VT radar
486:
The ammunition used in the Mark 26 is heavier than its earlier 3-inch rounds used by the US Navy. Although it was a joint project by the United States and the United
Kingdom, the two countries used cartridges that differed slightly.
300:
aircraft. As a joint project between the United States and the United
Kingdom, its design being finalized in 1956, the Mark 26 missed any wartime action. It was an essential improvement over the previous version, the
269:
Due to the long development period, the gun did not enter service until 1956 and the mounts proved problematic; the gun was removed from most US warships after a short service life.
778:
334:
improvements (with the exception of being much heavier than the Mark 24 version) as well as a water cooled monoblock system with a horizontally
768:
758:
310:. The twin barrel mount was believed to be more effective against faster aircraft and guided missiles than the single mounted
718:
17:
366:
destroyer escorts (one mounting forward). The mounting could elevate to 90° at 30° per second and train at 60° per second.
276:
in the Royal Navy, were to a different design and though also complex and subject to feed problems were more effective.
763:
667:
231:
was a US post war naval anti-aircraft gun. Developed as a joint project with the United
Kingdom, which called it the
293:
335:
311:
601:
353:
609:
546:
360:
773:
531:
145:
572:
235:, it had a water-cooled barrel combined with an automatic loader to deliver high rates of fire.
188:
302:
289:
247:
323:
683:
582:
41:
8:
593:
538:
511:
346:
263:
728:
Grulich, Fred (2004). "Question 37/00: Effectiveness of
Shipboard Anti-Aircraft Fire".
521:
259:
158:
93:
238:
The gun design was based on experience defending United States warships from
Japanese
737:
714:
677:
663:
642:
554:
62:
690:
490:
The UK also had a non-fragmenting round for practice and an inert training round.
255:
208:
307:
752:
741:
562:
503:
327:
47:
243:
198:
97:
314:, hence, the single barrel version of the Mark 26 never saw service use.
138:
284:
Development of the 3"/70 Mark 26 gun began from observations by the
297:
266:. "Mark 26" refers to the gun mounting rather than the gun itself.
239:
285:
262:
3 in (76 mm) in diameter and has a barrel length of 70
251:
168:
341:
The
British mounting for the guns built by Vickers was the twin
178:
684:
United States of
America 3"/50 (7.62 cm) Mark 27, 33, and 34
296:
anti-aircraft guns were too small to 'kill-stop' Japanese
468:
19,500 yards (17,830 meters) at 45 degrees elevation
352:(two mountings, one fore and one aft) and Canadian
322:The Mark 26 was the last of four versions of the
750:
708:
678:United States of America 3"/70 (7.62 cm) Mark 37
326:. The Mark 23 was the initial prototype on
779:Military equipment introduced in the 1950s
324:3"/50 caliber AA (anti-aircraft) artillery
40:
688:
657:
727:
643:US Naval Weapons, at "NavWeaps" website
14:
751:
213:3,400 feet per second (1,000 m/s)
689:DiGiulian, Tony (2 February 2022).
24:
25:
790:
450:3,400 ft/s (1,000 m/s)
447:3,400 ft/s (1,000 m/s)
144:210 inches (5.3 m) bore (70
272:The British mountings, known as
769:Naval guns of the United States
759:World War II anti-aircraft guns
425:11.2 lb (5.1 kg) SPD
345:. This was used on the British
254:terminology that this piece of
660:Naval Weapons of World War Two
636:
627:
218:Maximum firing range
13:
1:
651:
436:36.2 lbs (16.4 kg)
369:
713:. US Naval Institute Press.
662:. US Naval Institute Press.
478:38,000 feet (11,580 meters)
7:
428:11.2 lb (5.1 kg)
403:15 lbs. (6.8 kg)
373:
317:
10:
795:
279:
709:Friedman, Norman (2003).
414:76.2 mm x 669R (Mark 10)
406:15 lb (6.8 kg)
312:5"/54 caliber Mark 42 gun
250:. The name indicates in
217:
207:
197:
187:
177:
167:
157:
152:
137:
129:
124:
116:
108:
103:
89:
81:
76:
69:Place of origin
68:
58:
39:
32:
764:Naval anti-aircraft guns
691:"3"/70 (7.62 cm) Mark 6"
620:
590:Mark 6 (British mount)
493:
439:36 lb (16 kg)
658:Campbell, John (1985).
221:19,500 yards (17,830 m)
199:Rate of fire
173:3-inch (76.20 mm)
18:3"/70 Mark 26 gun
730:Warship International
290:Oerlikon 20 mm cannon
248:3-inch/50 caliber gun
233:QF 3-inch Mark N1 gun
583:CL-154-class cruiser
537:destroyer leaders -
458:approx 2,050 rounds
209:Muzzle velocity
183:15.62 inches (40 cm)
34:3 Inch / 70 Mark 26
502:escort destroyers:
499:Mark 26 (US Mount)
375:
133:2,650 lb (1,202 kg)
520:destroyer leader:
422:Propellant charge
374:
104:Production history
94:United States Navy
720:978-1-55750-442-5
571:command cruiser:
484:
483:
392:AA Mark 34 Mod 1
303:3-inch/50-caliber
246:and based on the
229:3"/70 Mark 26 Gun
225:
224:
193:-15 to 90 degrees
63:Anti-aircraft gun
27:Anti-aircraft gun
16:(Redirected from
786:
745:
724:
711:US Naval Weapons
705:
703:
701:
682:Tony DiGiulian,
676:Tony DiGiulian,
673:
645:
640:
634:
631:
613:-class destroyer
605:-class destroyer
444:Muzzle velocity
376:
343:3-inch/70 Mark 6
46:3"/70 turret on
44:
35:
30:
29:
21:
794:
793:
789:
788:
787:
785:
784:
783:
774:76 mm artillery
749:
748:
721:
699:
697:
670:
654:
649:
648:
641:
637:
632:
628:
623:
581:light cruiser:
516: (DDE-827)
514:Robert A. Owens
508: (DDE-825)
496:
433:Overall weight
417:76.2 mm x 662R
372:
350:-class cruisers
320:
282:
256:naval artillery
153:
96:
82:In service
77:Service history
54:
33:
28:
23:
22:
15:
12:
11:
5:
792:
782:
781:
776:
771:
766:
761:
747:
746:
725:
719:
706:
686:
680:
674:
668:
653:
650:
647:
646:
635:
625:
624:
622:
619:
618:
617:
616:
615:
607:
599:
597:-class cruiser
588:
587:
586:
579:
569:
549:John S. McCain
529:
518:
495:
492:
482:
481:
479:
476:
472:
471:
469:
466:
462:
461:
459:
456:
452:
451:
448:
445:
441:
440:
437:
434:
430:
429:
426:
423:
419:
418:
415:
412:
408:
407:
404:
401:
397:
396:
395:HE Fuze NC101
393:
390:
386:
385:
382:
379:
371:
368:
336:sliding breech
319:
316:
308:proximity fuze
281:
278:
223:
222:
219:
215:
214:
211:
205:
204:
201:
195:
194:
191:
185:
184:
181:
175:
174:
171:
165:
164:
161:
155:
154:
150:
149:
142:
135:
134:
131:
127:
126:
125:Specifications
122:
121:
118:
114:
113:
110:
106:
105:
101:
100:
91:
87:
86:
83:
79:
78:
74:
73:
70:
66:
65:
60:
56:
55:
45:
37:
36:
26:
9:
6:
4:
3:
2:
791:
780:
777:
775:
772:
770:
767:
765:
762:
760:
757:
756:
754:
743:
739:
735:
731:
726:
722:
716:
712:
707:
696:
692:
687:
685:
681:
679:
675:
671:
669:0-87021-459-4
665:
661:
656:
655:
644:
639:
630:
626:
614:
612:
608:
606:
604:
600:
598:
596:
592:
591:
589:
584:
580:
578:
577: (CLC-1)
576:
570:
568:
566:
560:
558:
557:Willis A. Lee
552:
550:
544:
542:
536:
534:
530:
527:
525:
519:
517:
515:
509:
507:
501:
500:
498:
497:
491:
488:
480:
477:
474:
473:
470:
467:
464:
463:
460:
457:
454:
453:
449:
446:
443:
442:
438:
435:
432:
431:
427:
424:
421:
420:
416:
413:
410:
409:
405:
402:
400:Shell weight
399:
398:
394:
391:
388:
387:
383:
380:
378:
377:
367:
365:
363:
358:
356:
351:
349:
344:
339:
337:
332:
331:
325:
315:
313:
309:
304:
299:
295:
291:
287:
277:
275:
270:
267:
265:
261:
257:
253:
249:
245:
241:
236:
234:
230:
220:
216:
212:
210:
206:
202:
200:
196:
192:
190:
186:
182:
180:
176:
172:
170:
166:
162:
160:
156:
151:
147:
143:
140:
136:
132:
128:
123:
119:
115:
111:
107:
102:
99:
95:
92:
88:
84:
80:
75:
72:United States
71:
67:
64:
61:
57:
52:
51:
43:
38:
31:
19:
736:(1): 31–33.
733:
729:
710:
698:. Retrieved
694:
659:
638:
629:
610:
602:
594:
574:
567: (DL-5)
564:
559: (DL-4)
556:
551: (DL-3)
548:
543: (DL-2)
540:
532:
526: (DL-1)
523:
513:
505:
489:
485:
455:Barrel Life
361:
354:
347:
342:
340:
329:
321:
294:Bofors 40 mm
283:
273:
271:
268:
244:World War II
237:
232:
228:
226:
141: length
98:Turkish Navy
90:Used by
49:
603:Restigouche
575:Northampton
475:AA Ceiling
355:Restigouche
338:mechanism.
242:attacks in
753:Categories
652:References
585:(canceled)
411:Cartridge
370:Ammunition
260:projectile
203:90-100 rpm
742:0043-0374
633:DiGiulian
611:Mackenzie
573:USS
565:Wilkinson
563:USS
555:USS
547:USS
539:USS
522:USS
512:USS
506:Carpenter
504:USS
362:Mackenzie
330:Carpenter
328:USS
288:that the
189:Elevation
85:1958–1999
50:Carpenter
48:USS
695:NavWeaps
541:Mitscher
533:Mitscher
318:Versions
298:kamikaze
292:and the
264:calibers
258:fires a
240:kamikaze
146:calibres
117:Produced
109:Designed
524:Norfolk
286:US Navy
280:History
252:US Navy
169:Caliber
53:in 1962
740:
717:
700:14 May
666:
535:-class
465:Range
364:-class
357:-class
274:Mark 6
179:Recoil
139:Barrel
621:Notes
595:Tiger
494:Usage
389:Type
348:Tiger
159:Shell
738:ISSN
715:ISBN
702:2023
664:ISBN
359:and
227:The
130:Mass
120:1957
112:1945
59:Type
734:XLI
384:UK
381:US
755::
732:.
693:.
561:,
553:,
545:,
510:,
163:AA
744:.
723:.
704:.
672:.
528:,
148:)
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
_refueling_in_1962.jpg)