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It retained the Armstrong steel barrel surrounded by wrought-iron coils under tension, but replaced the multiple thin wrought-iron coils shrunk around it by a single larger coil (10 in (25 cm) Mark I) or 2 coils (Mark II); the trunnion ring was now welded to other coils; and it eliminated Armstrong's expensive forged breech-piece.
Full recoil (40-inch Mk I, 44-inch Mk II [10]) was allowed at lower elevation, hence absorbing most of the horizontal (i.e. backward) force. A shorter recoil (23-inch Mk I, 20-inch Mk II [11]) was allowed at high elevation where the ground itself could absorb much of the vertical (i.e. downward) recoil force. This prevented the breech from ...
The British 10-inch calibre originated with the Committee on Ordnance in 1879 when it ordered a new 10.4-inch gun together with the new 9.2-inch [4] as part of its transition from muzzle-loading to breech-loading guns. The proposed 10.4-inch gun eventually went into service in 1885 as a 10-inch gun firing a 500-pound projectile.
The BL 9.2-inch Mk I–VII guns [note 2] were a family of early British heavy breechloading naval and coast defence guns in service from 1881 to the end of World War I. They were originally designed to use the old gunpowder propellants.
Elswick supplied 5 of their 10-inch 45-calibre guns for use on the battleship Constitución that they were building for Chile. Britain took the ship over in 1903 as HMS Swiftsure, and the guns were designated BL 10 inch Mk VI in UK service. These guns fired a 500-pound (227 kg) projectile using 146 pounds 12 ounces (66.6 kg) of cordite MD ...
A D-Day photo. June 6 marks the 80th anniversary of the Battle of Normandy—the day in 1944 when allied forces from 13 countries stormed five beaches in Normandy, France, marking the beginning of ...
Handbook of the 0.45 inch, 5-barrel Nordenfelt guns, Marks I and II 1894 at State Library of Victoria; Handbook for the 0.303" Nordenfelt 3-barrel, and Gardner 2-barrel, converted from 0.4 and 0.45" M.H. chamber (magazine rifle chamber) : mounted on carriages, field, machine gun, infantry and carriage, parapet, machine gun. London : H.M.S.O. 1900
The Type 41 10-inch (254 mm) naval gun was designed by Vickers specifically for the Imperial Japanese Navy, and was of a very similar design to the Vickers-built Mark VII guns produced initially for the Chilean Navy and later used in Royal Navy service. The Katori class used these weapons as secondary armament.