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mountings: the two-gun Mk XXI, the three-gun Mk XXII and the three-gun Mk XXIII. Depending on the mount elevation limits differed. The Mk XXI turret elevation...

Mark 23 or Mk.XXIII or variation, may refer to: The U.S. Navy designation Mark 23 may refer to: Heckler & Koch Mark 23, a .45 ACP-caliber handgun Mark...

redirected to the Bolo's own systems and weapons. Also, beginning with the Mark XXIII, internal disruptor fields were added to limit damage to vital systems from...

guns by carrying more of them. All ships of the class carried BL 6-inch Mk XXIII guns in triple turrets, with the centre gun mounted 30 in (76 cm) behind...

after the end of hostilities, the Mk XXII was superseded in new British submarines by the lighter QF 4 inch Mk XXIII. L class Odin ("O") class Parthian...

The BL 15-inch Mark I succeeded the BL 13.5-inch Mk V naval gun. It was the first British 15-inch (380 mm) gun design and the most widely used and longest...

Canarias-class cruisers. In 1930, the Royal Navy adopted the BL 6 inch Mk XXIII naval gun as the standard cruiser main battery in preference to this 8-inch...

Mark 8 naval gun. Like all British nominally 4.5 inch naval guns, the QF Mk I has an actual calibre of 4.45 inches (113 mm). From the BL Mark I gun of...

by the 50-calibre 6-inch Mk XXII gun, and as main armament on new light cruisers in the 1930s by the 50-calibre 6-inch Mk XXIII gun. Guns were mounted in...

The QF 4 inch Mk XVI gun was the standard British Commonwealth naval anti-aircraft and dual-purpose gun of World War II. The Mk XVI superseded the earlier...

at 13 knots (24 km/h; 15 mph). Belfast's main armament comprised twelve Mk XXIII 6-inch guns in four triple turrets directed by an Admiralty Fire Control...

102 mm (4.0 in) QF 4 inch Mk XIX naval gun 40-caliber  United Kingdom World War II 102 mm (4.0 in) QF 4 inch naval gun Mk XXIII 33-caliber  United Kingdom...

5-inch, Mk. II Vickers MG Collection & Research Association Williams, The .5" Vickers Guns and Ammunition Gun, Machine, Vickers .5-inch, Mk. IV Vickers...

the gun fired the same 112-pound (51 kg) shell introduced for the later Mk XXIII gun. Figures in the table below are for the 100lb shell. 152 mm /53 Italian...

any time. These guns broke with the example offered by the earlier 15-inch Mk I gun, which fired a heavy shell at a rather low muzzle velocity, and instead...

The QF 4-inch gun Mark XXIII was introduced in late 1945 as a deck gun for Royal Navy submarines. It was the last type of gun to be fitted to British...

trial of the Mk I Projector took place in February 1940 with resounding success. An order was placed by the Royal Navy for 1,000 of the Mk I models and...

The BL 14-inch Mk VII naval gun was a breech loading (BL) gun designed for the battleships of the Royal Navy in the late 1930s. This gun armed the King...

mid-1960s, some Amphion-class submarines were fitted with either a QF 4-inch Mk XXIII gun or a single 20mm autocannon to counter blockade running junks. They...

BL 6 inch Mk XXIII naval guns in twin turrets, two forward and two aft. Their secondary armament consisted of four high-angle QF 4 inch Mk V naval guns...