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Aviation History
1940
1940 - 1653.PDF
JUNE 6, 1940 A POWER-DRIVEN GUN High Rate of Fire : Similarity to Messerschmitt Shell-gun ? MENTION was first made of the installation ofshell-firing armament on Messerschmitt fightersduring the Spanish Civil War. It is said that one "Me" shot down by Government troops was carrying armament of this type, and, although badly damaged, a gun was forwarded to the technical branch of the French Army. According to an armament de- signer in this country, it was found similar in design to a gun he had developed in Germany in the years before Hitler assumed power. This was a power- driven weapon which at first fired 1,200 rounds a minute. A developed type is said to have attained 1,600 rounds a minute and the latest model 2,000 rounds a minute. The gun, in rifle-calibre, can be worked by any motor, a minimum of J h.p. being necessary. Its operation can best be followed with the aid of the accompany- ing drawings. The drive for load- ing and extracting is by the crank driving gear (9) which is yield- ingly connected with the lock (2). This lock contains the striker pin (4) bearing a roller (5) in its slit end. The claw of the lock fits the cartridge base and guides each round during the process ot loading and extract- ing. Ammunition is contained in a circular magazine (10) above the gun. During firing the cartridges art guided frora the drum by a device connected with the crank driving gear. The blocking of the lock during firing is effected by an arm (13) which is likewise set is motion through being connected with point (12). Besides this function it releases the firing pin which is drawn back by the connecting rod nose and held fast by lever Two sizes of drum which differ in design. The larger one holds 400 rounds of rifle-calibre ammunition. A diagrammatic representation of the functioning of the power-driven gun described here-vith.
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