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The Mk III gun was designed by the Elswick Ordnance Company as a modification of the Royal Arsenal (Woolwich) designs. It was trunnionless and made entirely of steel. It was connected to its carriage by way of three 'thrust-collars' which were formed on the exterior halfway round on the lower side of the gun beneath the center of gravity.
The 10-inch Mark 3 Mod 0 was built in a length of 40 calibers, had a tube, jacket and four hoops with a locking ring, and a screw box liner, all of which were manufactured out of nickel-steel. [1] The Mark 3 Mod 1s only differed from the Mod 0 in the shape of the front of their chambers and the Mod 2 had a conical nickel-steel liner that was ...
The weapon is produced by CIS (presently STK—Singapore Technologies Kinetics), initially in the Mark 1 version, later—the Mark 2, and currently, in the Mark 3 and Mark 4 variant. The Ultimax 100 (also called the U 100 ) is used in significant numbers by the armed forces of Singapore, Croatia and the Philippines . [ 1 ]
The Mark 3, gun Nos. 15–48 and 50–56, was constructed of tube, jacket, and eight hoops. It was found that the early guns suffered from excessive bore erosion, in an attempt to fix this the Navy reduced the propellant charges to reduce the muzzle velocity, because of this the Mark 4, gun Nos. 49, 58–60, 150–154, and 179, was similar to ...
The Mark 3 Experimental was a 30 caliber gun that used trunnions and had 11 hoops with the outer hoop starting 4 in (100 mm) from the breech and running out to the muzzle. The Mark 3s consisted of gun Nos. 9 – 27, 33 – 37, and 51.
The Mark 2, Nos. 3 – 70, was a 40 caliber naval gun that fired semi-fixed ammunition. The Mark 2 consisted of tube, jacket, and 2 hoops , being hooped to 68.5 inches (1,740 mm) from the muzzle. The Mod 1 had different exterior dimensions for the hoops and chase and was primarily intended to be used with the Mark 2 Mods 1 and 4 mounts.
The 3"/50-caliber gun Marks 17 and 18 was first used as a submarine deck gun on R-class submarines launched in 1918–1919. At the time it was an improvement on the earlier 3"/23-caliber gun . [ 7 ] After using larger guns on many other submarines, the 3"/50-caliber gun Mark 21 was specified as the standard deck gun on the Porpoise - through ...
The 18"/48 caliber Mark 1 – United States Naval Gun was the initial name and design for a large caliber naval gun in the early 1920s. After the Washington Naval Treaty prohibited the development of guns larger than 16 in (406 mm), the gun was relined and finished as a high velocity 16"/56 Mark 4 gun.