336:
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448:. It weighed only 30 kg. It was fed by a somewhat awkward, curved box magazine, available in versions that held 10 or 15 rounds; the latter weighed another 5 kg. As the rate of fire was 325 rounds per minute, this magazine could be emptied very quickly. The muzzle velocity was 490 m/s, which was low compared to the rifle-calibre machine guns of the period such as the German
42:
310:, Germany. Development commenced in 1913 and was therefore already advanced when the War Ministry issued a specification in June 1915 calling for an aircraft cannon of under 37 mm caliber and 70 kg weight capable of firing a 10-round burst. Tests commenced shortly thereafter with the weapon mounted in a
368:
in
December 1917. Due to the gun's operating principles, it could not be synchronised and this posed an immediate problem for its installation in this type of aircraft. The solution adopted after the tests with the Albatros J.I was to mount the gun at an angle to fire downwards. Fitting the gun to a
318:
was engaged to help develop and fine-tune the design, leading to a production contract for 120 Becker Type M2 guns in June 1916. In addition to the orders for aircraft guns placed with Becker, Spandau and
385:(LZ 112), were armed with the Becker cannon. Total production figures are not known, but were in excess of 539 (111 by Becker and 428 by MAN); 362 were surrendered to the Allies.
285:, which is in service to this day, and in a later form, was the original inspiration, through the Swiss design after World War I, for the World War II German Luftwaffe's
364:
ground-attack machine. Tests in smaller, single-engined aircraft were not so successful but were carried out extensively through the rest of the war, commencing with an
811:
278:. It was first mass-produced in 1916 and was installed in a variety of aircraft. It was the only German autocannon to see service in the air during the war.
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also received a contract to build Becker cannon for the Army. The
Spandau works developed the gun further, producing it as the
970:
902:
797:
683:
556:
During World War I, at least two other German 20 mm autocannons were designed and had limited production. One was the
573:
306:
The original design was based on the 19 mm Becker cannon cartridge by the
Coenders brothers at Stahlwerke Becker of
453:
80:
928:
975:
780:
The
Machine Gun, History, Evolution and Development of Manual, Automatic and Airborne Repeating Weapons, Vol. 1
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and the Hansa (Caspar) D.I, but these were not carried out before the armistice. Some rigid airships of the
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fighter with a pusher configuration was another obvious solution and trials were carried out with an
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218:
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Flying Guns World War I, Development of
Aircraft Guns, Ammunition and Installations 1914–32
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240:
107:
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452:, but a respectable performance compared to other autocannon of the period, such as the
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520:
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370:
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The main types to use the Type M2 were large, twin-engined aircraft, initially of
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404:) in 1921, which continued development with a more powerful cartridge as the
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took over the SEMAG assets in 1924, marketing improved versions as the
374:
293:, "fixed wing-mount automatic ordnance") 20 mm autocannon design.
200:
148:
17:
320:
949:
767:
Grosz, P. "The 2 cm Becker
Aircraft canon - development and use."
560:; the other was the 19 mm (sometimes reported as 20 mm)
449:
342:
operated a 20 mm Becker cannon in the front cockpit of a Gotha G.I
334:
286:
281:
The Becker also served as the pattern for the famous Swiss-built
479: with: text from Williams (2003) pp. 96-97. You can help by
793:
715:
The Chaco War 1932–35: South
America's Greatest Modern Conflict
581:-the final German World War II development of the Becker design
638:(1st ed.). Ramsbury: Airlife Publishing. pp. 89–90.
463:
327:, which was heavier and had a slower rate of fire at 250/min.
444:
The Type M2 was a slim weapon working on the principle of
263:
was a German autocannon developed for aircraft use during
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634:Williams, Anthony G.; Gustin, Dr. Emmanuel (2003).
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46:An artist's rendering of a Becker antiaircraft gun
428:bought eight 20 mm SEMAG rifles. During the
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373:. Other intended installations were for an
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712:Quesada, Alejandro de (20 November 2011).
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393:The patent for the gun was bought by
7:
782:. U.S. Government Printing Office.
718:. Oxford: Osprey. pp. 33–34.
25:
446:advanced primer ignition blowback
467:
325:Spandau Type 3 20 mm cannon
261:Becker Type M2 20 mm cannon
408:. After the collapse of SEMAG,
245:490 m/s (1,600 ft/s)
132:
1:
574:List of API blowback firearms
432:, seven were captured by the
760:Williams, Anthony G. (2000)
454:Vickers QF 1 pounder pom-pom
291:Maschinengewehr Flügel Fest
81:Imperial German Air Service
1002:
664:www.armorypublications.com
381:, such as the most modern
205:20 mm (0.787 in)
981:World War I aircraft guns
929:Atchisson assault shotgun
184:
62:Place of origin
39:
552:Competing German designs
389:Postwar use and patterns
180:30 kg (66 lb)
913:Mk 19 grenade launcher
908:Heckler & Koch GMG
738:Williams (2003), p. 91
343:
302:Design and development
253:15-rounds box magazine
231:Rate of fire
971:API blowback firearms
821:API blowback firearms
747:Chinn (1951), 523–525
684:"THE CANNON PIONEERS"
399:Seebach Maschinenbau
358:Friedrichshafen G.III
338:
283:Oerlikon 20 mm cannon
379:Imperial German Navy
241:Muzzle velocity
660:"Untitled Document"
536:Friedrichshafen G.I
856:Solothurn S-18/100
688:www.quarryhs.co.uk
401:Aktiengesellschaft
344:
97:Production history
958:
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896:Grenade launchers
725:978-1-84908-901-2
497:
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269:Stahlwerke Becker
257:
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195:20x70mmRB (130 g)
126:Stahlwerke Becker
16:(Redirected from
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844:Anti-tank rifles
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769:Over the Front 7
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250:Feed system
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331:Operational use
316:Spandau arsenal
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108:August Coenders
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105:Reinhold Becker
77:In service
72:Service history
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34:Becker Type M2
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877:Oerlikon 20 mm
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851:Oerlikon SSG36
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172:Specifications
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887:MK 108 cannon
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694:on 2017-09-29
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521:Albatros D.VI
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516:Albatros D.II
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475:This section
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388:
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383:Zeppelin L 70
380:
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371:Albatros D.VI
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354:Grossflugzeug
352:
350:
341:
340:Oskar Ursinus
337:
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308:Reinickendorf
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66:German Empire
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31:
19:
945:Sterling SMG
871:
779:
768:
764:Airlife, UK.
761:
743:
734:
714:
707:
696:. Retrieved
692:the original
687:
678:
667:. Retrieved
663:
654:
635:
579:MG FF cannon
558:2cm Ehrhardt
555:
526:Albatros J.I
485:
481:adding to it
476:
460:Applications
443:
405:
398:
392:
366:Albatros J.I
353:
348:
345:
324:
305:
290:
280:
260:
258:
224:API blowback
122:Manufacturer
865:Autocannons
785:web version
440:Description
434:Paraguayans
360:bomber and
272: [
265:World War I
135: built
91:World War I
986:Autocannon
965:Categories
762:Rapid Fire
698:2017-09-02
669:2017-09-02
586:References
531:Caspar D.I
422:Oerlikon S
418:Oerlikon L
414:Oerlikon F
164:Oerlikon S
159:Oerlikon L
154:Oerlikon F
56:Autocannon
27:Autocannon
903:Daewoo K4
541:Gotha G.I
488:June 2013
430:Chaco War
362:AEG G.IVk
351:"G"-class
349:IdFlieg's
312:Gotha G.I
191:Cartridge
922:Shotguns
778:(1951).
568:See also
506:AEG J.II
501:AEG G.IV
410:Oerlikon
143:Variants
114:Designed
102:Designer
562:Szakats
546:LVG C.V
511:AGO S.I
426:Bolivia
406:SEMAG L
375:AGO S.I
297:History
235:325 rpm
210:Barrels
201:Caliber
149:SEMAG L
18:SEMAG L
722:
642:
420:, and
219:Action
950:TZ-45
450:MG 08
395:SEMAG
287:MG FF
276:]
771:(2).
720:ISBN
640:ISBN
259:The
177:Mass
138:539+
117:1913
87:Wars
52:Type
835:APT
483:.
321:MAN
267:by
133:No.
967::
686:.
662:.
594:^
564:.
456:.
436:.
424:.
416:,
274:de
813:e
806:t
799:v
728:.
701:.
672:.
648:.
490:)
486:(
397:(
289:(
213:1
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
