14 cm/40 11th Year Type naval gun

14 cm/40 11th Year Type naval gun I400gun.jpg 300 14 cm/40 11th Year Type naval gun aboard Japanese submarine I-400 being inspected by United States Navy personnel. Empire of Japan Naval gun YES YES 1922–1945 Imperial Japanese Navy World War II Single Mount: 8600 kg us 0Twin Mount: 18300 kg us 0Campbell 1985 190–191 5.9 m ftin us 5.6 m ftin us (bore length) separate-loading, cased charge 38 kg us 14 cm in on 2 us 5 rounds per minute 700 m/s ft/s us 16000 m yd us at +30°Campbell 1985 190–191 Horizontal sliding breech block Single Mount: +30°  to −5° Twin Mount: +40°  to −7° Campbell 1985 190–191 The 14 cm/40 11th Year Type naval gun was the standard surface battery for Japanese submarine cruisers of World War II. Most carried single guns, but Junsen type submarines carried two. Japanese submarines I-7 and I-8 carried an unusual twin mounting capable of elevating to 40°. The appended designation 11th year type refers to the horizontal sliding breech block on these guns. Breech block design began in 1922, or the eleventh year of the Taishō period in the Japanese calendar.Campbell 1985 173, 191 The gun fired a projectile 14 cm in 1 us in diameter, and the barrel was 40 calibers long (barrel length is 14 cm x 40 = 560 centimeters or 220 inches).Fairfield 1921 156 World War II This gun was the weapon used by Japanese submarine I-26, along with torpedoes, to sink Cynthia Olson, on December 7 1941, the first United States Merchant Marine vessel to be sunk after the entry of the United States into World War II.Prange 1991 89 The type was used by I-17 to sink Emidio on December 18, 1941, and to bombard the Ellwood Oil Field near Santa Barbara, California on February 23, 1942. It was also used by I-25 for the Bombardment of Fort Stevens in Oregon near the mouth of the Columbia River on June 21, 1942, and by I-26 to shell the Estevan Point lighthouse in British Columbia.Webber 1975 14–16, 40–62 On June 8, 1942, on the coast of New South Wales, Australia, the type was used by I-21 to shell Newcastle and by I-24 to bombard Sydney Harbour.Hashimoto 2010 Similar weapon A longer-barreled 14 cm/50 3rd Year Type naval gun was used aboard surface ships and for coastal defense. The 40 caliber/11th Year Type guns were intended for use against destroyers, and fired base-fuzed projectiles with thinner shell walls allowing a larger bursting charge than the 50 caliber/3rd Year Type guns for potential use against armored ships. The lower velocity 40 caliber gun had a useful life expectancy of 800 to 1000 effective full charges (EFC) per barrel.Campbell 1985 190–191 Citations References Naval Weapons of World War Two Campbell John Naval Institute Press Annapolis, Maryland 1985 0-87021-459-4 Naval Ordnance Fairfield A.P. The Lord Baltimore Press 1921 Hashimoto Mochitsura 2010 Sunk: The Story of the Japanese Submarine Fleet, 1941-1945 https://books.google.com/books?id=C01vCwAAQBAJ Palm Desert, CA Progressive Press Chapter 4 - Bombardment by Submarine 978-1615775811 Prange Gordon W. 1991 December 7, 1941: The Day the Japanese Attacked Pearl Harbor https://books.google.com/books?id=T8lcAwAAQBAJ Random House Publishing 978-0517066584 Webber Bert Retaliation: Japanese Attacks and Allied Countermeasures on the Pacific Coast in World War II 1975 Oregon State University Press 0870710761 Category:World War II naval weapons Category:Naval guns of Japan Category:140 mm artillery