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BL 6-inch Gun Mk XIX : ウィキペディア英語版 | BL 6-inch Gun Mk XIX
The British BL 6 inch Gun Mk XIX〔I.e. Mark 19 : Britain at the time designated Marks (models) of ordnance using Roman numerals. This was a field gun and field ordnance normally used a different Mark series to naval ordnance, but unusually the next available Mark number in the 6-inch naval gun series was used, rather than Mark I as the first 6-inch BL field gun.〕 was introduced in 1916 as a lighter and longer-range field gun replacement for the obsolescent BL 6 inch Gun Mk VII. ==History, description== The gun was designed and built by Vickers specifically as a field gun, unlike its predecessors which originated as naval guns. Its length was reduced from the 45 calibres of its naval gun predecessors, to 35 calibres, to reduce weight and improve mobility. It utilized the modern carriage and recoil mechanism of the BL 8 inch Howitzer Mk 6. The gun barrel was of wire-wound construction: "The gun body is of steel and consists of tubes, a series of layers of steel wire, jacket, breech bush and breech ring".〔Handbook of artillery, United States. Army. Ordnance Dept, May 1920, page 245〕 "The breech mechanism is operated by means of a lever on the right side of the breech. On pulling the lever to the rear the breech screw is automatically unlocked and swung into the loading position. After loading, one thrust of the lever inserts the breech screw and turns it into the locked position. The breech mechanism is similar to that used on the 8 inch howitzers both in design and operation".〔
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 Gun Mk XIX」の詳細全文を読む
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