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The Rolls-Royce Experimental Machine Gun was a prototype British heavy machine gun, designed by Rolls-Royce during World War II. Rolls-Royce commenced design of a heavy machine gun in early 1940, intended for use in aircraft.〔 Birch 2000, p. 87〕 The result was a recoil operated weapon firing .50 Browning cartridges. This was evaluated in March 1941 and proved prone to stoppages.〔Hogg 1990, p.344〕 A revised gas-operated weapon was designed and built to try and solve these problems.〔 Birch 2000, p.97〕 As well as the .50 inch versions, it was planned to modify the gas operated gun to fire the more powerful .55 inch ammunition used in the Boys anti-tank rifle.〔 Birch 2000, p.98〕 All work on the Rolls-Royce machine guns was abandoned in 1942.〔 ==References== ;Notes ;Bibliography *Birch, David. ''Rolls-Royce Armament''. Derby, UK: Rolls-Royce Heritage Trust. 2000. ISBN 1-872922-15-5. *Hogg, Ian V. and Weeks, John S. ''Military Small Arms of the 20th Century''. Iola WI: Krause. 7th Edition, 1990. ISBN 0-87341-824-7. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Rolls-Royce Experimental Machine Gun」の詳細全文を読む スポンサード リンク
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