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QF 4.5 inch Mk I - V naval gun 45-caliber United Kingdom: World War II - Cold War 113 mm (4.4 in) 4.5 inch Mark 8 naval gun 55-caliber United Kingdom: Cold War - Modern 120 mm (4.7 in) 12 cm/12 short naval gun Japan: World War II 120 mm (4.7 in) Type 3 120 mm 45 caliber naval gun Japan: World War I - World War II 120 mm (4.7 in)
In World War I 45-caliber naval gun barrels were typical, in World War II 50- to 55-caliber barrels were common, with Germany already manufacturing tank guns of 70 calibers by 1943. Today, 60- to 70-caliber barrels are not uncommon, but the latest technology has allowed shorter barrels of 55 calibers to attain muzzle velocities of 1,750 m/s ...
The large-caliber guns were designed to fire either an armor-piercing round for anti-ship and anti-structure work, and a high-explosive round for use against unarmored targets and shore bombardment. The North Carolina and South Dakota classes could also fire the 2,700-pound Mark 8 shell with the 16"/45 caliber Mark 6 gun, although with a ...
2 List of naval guns by caliber size. 3 Naval anti-aircraft guns. 4 See also. 5 References. 6 External links. ... List of Naval Guns by country of origin List of ...
The 3-inch/50-caliber gun (spoken "three-inch fifty-caliber") in United States naval gun terminology indicates the gun fired a projectile 3 inches (76 mm) in diameter, and the barrel was 50 calibers long (barrel length is 3 in × 50 = 150 in or 3.8 m).
Naval artillery calibers greater than 130 mm (5.1 in) were not installed on most new ships after World War II. [ii] With the progression of ship design away from heavy caliber guns, nearly all main gun armaments developed since then are of dual-purpose nature.
The gun was designed in 1939, and a prototype was tested in 1942. Unlike previous guns, such as the 16"/45 caliber guns used on the North Carolina class, which were completely made and assembled at the Naval Gun Factory in Washington D.C., the forgings for the Mark 8 were manufactured at the Midvale and Bethlehem Steel corporations.
The 8"/55 caliber gun (spoken "eight-inch-fifty-five-caliber") formed the main battery of United States Navy heavy cruisers and two early aircraft carriers. United States naval gun terminology indicates the gun barrel had an internal diameter of 8 inches (203 mm), and the barrel was 55 calibers long (barrel length is 8 inch × 55 = 440 inches ...