10-inch/40-caliber gun Mark 3

10"/40 caliber Mark 3 Naval Gun USS Seattle Turret LOC 09615u.jpg Washington ACR-11 - 10-inch gun practice. United States Naval gun YES YES 1902 United States Navy World War I Bureau of Ordnance 1899 U.S. Naval Gun Factory 21 (Nos. 27–47) Mark 3 74836 lb (without breech) 79500 lb (with breech) 413 in 400 in bore (40 calibers) 510 lb armor-piercing 10 in mm 3 2 – 3 rounds per minute 2700 ft/s 20000 yd 0 at 14.5° elevation -3° to +14° −150° to +150° The 10"/40 caliber gun Mark 3 (spoken "ten-inch-forty-caliber") was used for the main batteries of the United States Navy's last generation of armored cruisers, the Tennessee cruiser 0. The Mark 3s were the last, and most powerful, 10 in 0 on out guns built for the US Navy.Navweaps 2016 Design of the Mark 3 The Navy's Policy Board call for a variety of large caliber weapons in 1890, with ranges all the way up to 16 in 0 on out, to use the new smokeless powder that had recently been adopted by the Navy. Because of this new propellant, projectiles could accelerate all the way along the gun barrel, which allowed for barrels of 40, or more, calibers long. This led to the development of the 10-inch/40 caliber gun.Navweaps 2016 The Mark 3 was specifically designed for the Tennessee-class armored cruisers, numbered in order after the Mark 1 and Mark 2s, Nos. 27–47, with No. 27 being delivered in February 1906. Nos. 27–31, 36, and 45 were all Mod 0s, with Nos. 37–44, 46, and 47 being Mod 1s. The initial Mod 2s were Nos. 32–35, with other later converted to Mod 2. These were all constructed of gun steel.Friedman 2011 174 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.Navweaps 2016 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 same length as the tube, with the chamber volume being slightly reduced.Friedman 2011 174 Naval Service ShipGun InstalledGun MountTennessee ACR-10Mark 3: 10"/40 caliberMark 6: 2 × twin turretsWashington ACR-11Mark 3: 10"/40 caliberMark 6: 2 × twin turretsNorth Carolina ACR-12Mark 3: 10"/40 caliberMark 6: 2 × twin turretsMontana ACR-13Mark 3: 10"/40 caliberMark 6: 2 × twin turrets See also Weapons of comparable role, performance and era 10-inch gun M1895 - Army gun of similar size and era BL 9.2-inch Mk IX – X naval gun - contemporary British naval and coast defense weapon Canon de 240 L Mle 1884 - contemporary French coast defense, siege, and railway weapon Notes References Books Friedman Norman https://books.google.com/books?id=yh3OAwAAQBAJ Naval Weapons of World War One Seaforth Publishing Norman Friedman 2011 978-1-84832-100-7 Online sources http://www.navweaps.com/Weapons/WNUS_10-40_mk3.php United States of America 10"/40 (25.4 cm) Mark 3 Navweaps 25 July 2016 15 October 2016 Navweaps 2016 External links Bluejackets Manual, 1917, 4th revision: US Navy 14-inch Mark 1 gun June 2017 Category:Naval guns of the United States Category:254 mm artillery