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From Wikipedia, the free encyclopedia

MK 101
Rheinmetall mk-101.jpg
The MK 101 machine cannon
TypeAircraft autocannon
Place of originGermany
Service history
In service1943–1945
Used byNazi Germany
WarsWorld War II
Production history
DesignerRheinmetall-Borsig
Designed1940
ManufacturerRheinmetall-Borsig
Produced1940–1945
Specifications
Mass139 kilograms (306 lb)
Length2,592 millimetres (102.0 in)
Barrel length1,350 millimetres (53 in)

Cartridge30x184 mmB, steel casing
Caliber30 mm
ActionRecoil operation
Rate of fire230–260 rounds/min
Muzzle velocity900 m/s (2,953 ft/s)

The MK 101 is the designation of a 30 mm autocannon used in German combat aircraft during World War II. Although accurate and powerful, with a high muzzle velocity, it was very heavy, with a low rate of fire, which limited its production.

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Transcription

Development and use

Developed in 1935 by Rheinmetall-Borsig as a commercial venture as the MG-101 (later designated MK 101, with the "MK" abbreviating the term Maschinenkanone, as an autocannon), the MK 101 cannon was a 30 mm (1.18 in), long-barreled automatic cannon capable of firing nine different types of 30x184B mm ammunition (ranging from basic high explosive to tungsten-cored armor-piercing rounds). Featuring pneumatic cocking and fired by percussion via an electrical solenoid, the MK 101 was recoil-operated. In operation, the barrel and bolt recoiled 30 mm (1.18 in) to the rear after each shot. The bolt locked via a Stange-type machined sleeve with internal interrupted threads, similar to some Solothurn weapons such as the 7.92 mm (.312 in) MG 30 light machine gun. The locking system was strong, but rate of fire was limited to a rather slow 230–260 rpm, which limited its use against other aircraft. Powerful and accurate for its day, it was carried primarily on the Henschel Hs 129 ground-attack aircraft, commencing in late 1941. Fed by a 10-round (early versions) or a 30-round box magazine, the MK 101 could penetrate 75 mm (3 in) of armor at 300 m (330 yd) range. The dozen examples created of the Heinkel He 177A-1/U2 Zerstörer ("Destroyer") experimental prototype attack aircraft used twinned MK 101s on a forward-aimed limited-traverse mount, located in the extreme lower nose at the front of a dramatically enlarged Bola inverted-casemate gondola emplacement under the nose, and was intended for anti-ship and possible "train-busting" use, but was never deployed in combat. When it was used from beneath an Hs 129's central fuselage as a ventral gun pod-mounted anti-tank weapon, the MK 101's tungsten-cored AP round was capable of penetrating the turret and side armor of the Soviet KV-1 heavy tank.[1] An electrically-fired version of the MK 101 cannon was later developed and designated the MK 103.

See also

References

  1. ^ Kay, Antony L. and Smith, John R., German aircraft of the Second World War: Including Helicopters and Missiles, Naval Institute Press (2002), ISBN 1-55750-010-X, 9781557500106, p. 169
This page was last edited on 12 May 2019, at 14:52
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