The QF 4.5inchgun has been the standard medium-calibre navalgun used by the Royal Navy as a medium-range weapon capable of use against surface, aircraft
The BL 15-inch Mark I succeeded the BL 13.5-inch Mk V navalgun. It was the first British 15-inch (380 mm) gun design and the most widely used and longest
also serving on other vessels. United States navalgun terminology indicates the gun fired a projectile 5-inch (127 mm) in diameter, and the barrel was 51
The BL 16-inch Mark I was a British navalgun introduced in the 1920s and used on the two Nelson-class battleships. A breech-loading gun, the barrel was