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Newton 6-inch Mortar
The Newton 6 inch Mortar was the standard British medium mortar in World War I from early 1917 onwards.
==Description==
The Newton 6 inch replaced the 2 inch Medium Mortar beginning in February 1917.
It was a simple smooth bore muzzle-loading (SBML) mortar consisting of a one-piece steel tube barrel, with a "striker stud" inside the centre of the closed base of the tube. The rounded external base of the tube sat in a socket in the flat cast steel base, which in turn sat on a wooden platform. An "elevating guy" (cable) connected to a loop in the upper side of the barrel and the rear end of the bed. "Traversing guys" (cables) connected to loops on each side of the barrel and eyebolts on the upper sides of the bed. Hence aiming of the barrel was done by adjusting the length of the guys via adjusting screws. A socket in the barrel base allowed for emergency firing via a "misfire plug" in the case of misfires (i.e. if the bomb remained in the barrel due to failure of the propellant to ignite).〔Preliminary Notes on the M.L. 6-Inch Trench Mortar, Mark I, 1917, page 1〕
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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