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By comparison, the 12"/50-caliber Mark 8 gun of the Alaska-class large cruisers had a barrel life of 344 shots, while the 16"/50-caliber Mark 7 gun fitted in the Iowa-class battleships had a barrel life of 290 rounds. [2] Turning at 4 degrees a second, each turret could train to 150 degrees on either side of the ship.
Complementing the 16-in/50 caliber Mark 7 gun was a fire control computer, the Ford Instrument Company Mark 8 Range Keeper. This analog computer was used to direct the fire from the battleship's big guns, taking into account factors including the speed of the targeted ship, the projectile's travel time, and air resistance.
In turn the modern Dreadnought battleship appeared and alongside it the battlecruiser; the former protected by large amounts of armour which could protect it against all but guns of the largest calibre as found on other battleships, the latter carrying same size guns as a battleship but less armour in order to reach higher speeds.
The German battleship Bismarck, carried a main battery of eight 15 inch (380mm) guns, along with a secondary battery of twelve 5.9 inch (150mm) guns for defense against destroyers and torpedo boats, and an anti-aircraft battery of various guns ranging in caliber from 4.1 inch (105mm) to 20mm guns.
The Gun Assembly shown in the picture is the mount's right gun. The left gun is the mirror image of the right gun. Since this gun assembly fired semi-fixed ammunition, (pictured) each round was delivered to the guns in two pieces. [27] Each gun, in this twin mount, had its own projectile hoist and powder case hoist from the upper handling room.
Napoléon (1850), the world's first steam-powered battleship. A ship of the line was a large, unarmored wooden sailing ship which mounted a battery of up to 120 smoothbore guns and carronades, which came to prominence with the adoption of line of battle tactics in the early 17th century and the end of the sailing battleship's heyday in the 1830s.
A battleship gun barrel used by the Navy in World War II that seemed destined for the scrapyard will soon get a second life. Coast Defense Study Group, a nonprofit organization dedicated to ...
Illustration of main and secondary batteries on USS Washington (BB-56) Main: Red Secondary: Blue. Secondary armaments are smaller, faster-firing weapons that are typically effective at a shorter range than the main (heavy) weapons on military systems, including battleship- and cruiser-type warships, tanks/armored personnel carriers, and rarely other systems.