page_title: Japanese battleship Kirishima
section_title: 1934–1941: Fast battleship
hierarchical_section_title: Japanese battleship Kirishima / Service / 1934–1941: Fast battleship
caption_attribution_description: English: Imperial Japanese Navy battleship Kirishima (foreground) and aircraft carrier Akagi (background) near Sukumo Bay, Japan.
context_page_description: Kirishima was a warship of the Imperial Japanese Navy during World War I and World War II. Designed by British naval engineer George Thurston, she was the third launched of the four Kongō-class battlecruisers. Laid down in 1912 at the Mitsubishi Shipyards in Nagasaki, Kirishima was formally commissioned in 1915 on the same day as her sister ship, Haruna. Kirishima patrolled on occasion off the Chinese coast during World War I, and helped with rescue efforts following the 1923 Great Kantō earthquake.
  Starting in 1927, Kirishima's first reconstruction rebuilt her as a battleship, strengthening her armor and improving her speed. From 1934, a second reconstruction completely rebuilt her superstructure, upgraded her engine plant, and equipped her with launch catapults for floatplanes. Now fast enough to accompany Japan's growing carrier fleet, she was reclassified as a fast battleship. During the Second Sino-Japanese War, Kirishima acted primarily as a support vessel and troop transport, moving army troops to mainland China.
context_section_description: On 18 November 1934, Kirishima was drydocked in Sasebo Naval Arsenal in preparation for her second reconstruction, which would enable her to function alongside Japan's growing fleet of fast carriers. Her stern was lengthened by 26 feet (7.9 m), while her superstructure was rebuilt to allow for new fire-control mechanisms. Her boilers were removed and replaced with eight new oil-fired Kampon Boilers, and she received newer geared turbines. The elevation of her main and secondary battery was increased, and she was equipped with two Nakajima E8N "Dave" and Kawanishi E7K "Alf" reconnaissance floatplanes. To this end, aircraft catapults and launch-rails were also refitted. Her older 3-inch guns were removed and replaced with eight 5-inch dual-purpose guns. She was also outfitted with twenty Type 96 25 mm antiaircraft guns in twin turrets, while two of her 6-inch guns and her remaining torpedo tubes were removed.
  Kirishima's armor was also extensively upgraded. Her main belt was strengthened to a uniform thickness of 8 inches (as opposed to varying thicknesses of 6–8 inches before the upgrades), while diagonal bulkheads of a depth ranging from 5 to 8 inches (127 to 203 mm) reinforced the main armored belt. The turret armor was strengthened to 10 inches (254 mm), while 4 inches (102 mm) were added to portions of the deck armor. The armor around her ammunition magazines was also strengthened over the course of the refit. The reconstruction was declared complete on 8 June 1936. Capable of speeds of up to 30.5 knots (56.5 km/h; 35.1 mph), Kirishima was reclassified as a fast battleship.
  In August 1936, Kirishima departed Sasebo alongside Fuso to patrol the Chinese coast off Amoy. From March 1937 to April 1939, she was frequently deployed as a support vessel and troop transport during the Second Sino-Japanese War. In November 1938, Kirishima was designated the command vessel of the Third Battleship Division, and was under the command of Rear Admiral Chuichi Nagumo. In November 1939, she was placed in reserve and fitted with additional armor on the front faces of her turrets and barbettes.
  On 11 November 1941, after a series of transfers between Japanese naval bases, Kirishima was outfitted in preparation for coming hostilities and assigned—alongside her sister ships—to the Third Battleship Division. On 26 November, Kirishima departed Hitokappu Bay, Kurile Islands in the company of Hiei and six Japanese fast carriers of the First Air Fleet Striking Force (Akagi, Kaga, Sōryū, Hiryū, Shōkaku, and Zuikaku). On 7 December 1941, aircraft from these six carriers attacked the United States Pacific Fleet at their home base of Pearl Harbor, sinking four U.S. Navy battleships and numerous other vessels. Following the attack and the declaration of war by the United States, Kirishima returned to Japan.
caption: Kirishima and the fast carrier Akagi off Sukumo, April 1939
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