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Birch gun
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Birch gun : ウィキペディア英語版
Birch gun

The Birch Gun was the world's first practical self-propelled artillery gun, built at the Royal Arsenal, Woolwich in 1925. The gun was never highly regarded by the British High Command, purely for prejudicial beliefs and political pressure rather than any real lack of ability.〔J.B.A. Bailey ''Field Artillery and Firepower'', Oxford, 1989, ISBN 0-85066-810-7, p. 156〕 Named after General Sir Noel Birch, who was Master General of Ordnance at the time, the Birch gun had real potential. It was built upon a Vickers Medium Mark II tank chassis and mated originally with the QF 18 pdr (83.8 mm) gun then with a 75 mm field gun. The project was abandoned in 1928 after political pressure killed off any plans to complete the third version of this weapon.
==Armament==

The armament for the original Birch Gun consisted of an Ordnance QF 18 pounder field gun (3.3 inch, 84 mm).〔(Detail photos of the British 18-pounder 18 pdr QF Field Gun )〕 This was changed to the 75 mm gun on the Birch gun Mk II and from then on was able to be fired either at ground targets or in the air-defence role, being given a much higher rate of elevation to be fired at enemy aircraft.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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