The Type 100 is a

double barrel "Double Barrel" is a 1970 reggae single by Dave and Ansell Collins (though credited in both the UK and the U.S. to 'Dave and Ansil Collins'). It was the second reggae tune to top the UK charts, two years after Desmond Dekker's number 1 breakth ...

machine gun of Japanese origin. The weapon is gas operated and fed from an overhead

magazine A magazine is a periodical publication, generally published on a regular schedule (often weekly or monthly), containing a variety of content. They are generally financed by advertising, purchase price, prepaid subscriptions, or by a combinatio ...

. An example can be seen at the

Satria Mandala Museum The Satriamandala Museum (also spelled Satria Mandala Museum) is the main museum for the Indonesian Armed Forces. Opened on 5 October 1972, it is located on of land in South Jakarta and holds numerous artefacts, weapons, and vehicles. Descri ...

Jakarta Jakarta (; , bew, Jakarte), officially the Special Capital Region of Jakarta ( id, Daerah Khusus Ibukota Jakarta) is the capital and largest city of Indonesia. Lying on the northwest coast of Java, the world's most populous island, Jakarta ...

Overview

The Type 100 and Type 1 weapons offer the advantage of two guns being mounted in the space occupied by one gun of the same size, thus saving weight in the gun and mount, and space in the plane. A small ammunition supply making frequent

loading necessary is a disadvantage, partially because of the advantages of the double barrel principle. This doubling concept is also used for the

Type 89 machine gun Type 89 refers to two unrelated Imperial Japanese Army aircraft machine guns. Its Imperial Japanese Navy Air Service, Imperial Japanese Navy counterparts are the Type 97 aircraft machine gun, Type 97 machine gun (fixed), and Type 92 machine gun, ...

and MG 81Z machine gun. The operation for both barrels is housed in a single receiver. This is a single forging, milled to house the two separate actions. The magazine opening is cut out of the top of the receiver, the ejection slot out of the bottom. Each action has its own back plate. The gas piston group action is based on

ZB vz. 26 The ZB vz. 26 was a Czechoslovak light machine gun developed in the 1920s, which went on to enter service with several countries. It saw its major use during World War II, and spawned the related ZB vz. 27, vz. 30, and vz. 33. The ZB vz. 26 influe ...

design. The bolt is a steel forging well machined. The gas cylinder tube is constructed of seamless steel tubing and is threaded to the receiver at the rear. The trigger assembly is made up of two separate sear assemblies riveted to the pistol grip framework. Two pistol grips are located about 6 inches apart, the sears are connected to a horizontal trigger bar mounting a trigger on either end. Both guns may be fired by depressing either trigger. The magazine is the saddle-drum magazine type. Each side holds 50 rounds and feeds one gun. Each side has its own spring so that, in the event of a jam affecting one barrel, the other gun may continue to fire. The Type 1 variant appears to be basically the same weapon as the earlier model, the Type 100. The Type 1 gun had a head or shoulder rest attached to the gun. This is not the same Type 1 machine gun as used by the Imperial Japanese Navy, which was a variant of the German

MG 15 The MG 15 was a German 7.92 mm machine gun designed specifically as a hand-manipulated defensive gun for combat aircraft during the early 1930s. By 1941 it was replaced by other types and found new uses with ground troops. History The MG 1 ...

machine gun.

References

8 mm machine guns Aircraft guns World War II machine guns Multi-barrel machine guns Machine guns of Japan Multiple-barrel firearms {{machinegun-stub