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The Ordnance BL 6 inch 30cwt howitzer was a British medium howitzer used in the Second Boer War and early in World War I. The qualifier "30cwt" refers to the weight of the barrel and breech together which weighed 30 hundredweight (cwt) : 30 x 112 lb = 3360 lb. It can be identified by the slightly flared shape of the muzzle and large recuperator springs below the barrel. ==History== Introduced 1896, based on an Indian Army design. Its original shell was 122 lb 9 oz Lyddite explosive. In 1901 a lighter shell was introduced which increased maximum range when firing from its wheeled travelling carriage to 7000 yards.〔Hall June 1972〕 These were then referred to as the "heavy" and "light" shell respectively. A 100 lb shrapnel shell was also available. It was phased out and replaced by 6 inch 26 cwt howitzer from late 1915 onwards. Also, in 1915 it received barrel, breechlock, recoil system and ammunition upgrade increasing its maximum range to 10400m (8400m with standard ammunition).((See specifications) ) 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「BL 6-inch 30 cwt howitzer」の詳細全文を読む スポンサード リンク
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