of every ship recently completed, under construction or still being designed. The Chidori-class was forced to reduce its armament load and the bridge structure was cut down by one level. The bulges were removed, but displacement increased to with the addition of ballast. Their speed dropped to and range decreased to at . The remaining 16 vessels planned for the class were cancelled, and replaced by the torpedo boats, which were redesigned to reduce the top-heaviness that caused Tomozuru to capsize. Service In 1937, the four sisters were organized into Torpedo Flotilla 21 and made a sortie for the Battle of Shanghai. All four saw action in the Battle of the Philippines and the Dutch East Indies campaign. Chidori and Manazuru returned to home waters after Torpedo Flotilla 21 was disbanded in the spring of 1942 and were on escort duties for the rest of the war. Hatsukari and Tomozuru remained in that area for most of the rest of the war on escort operations. Tomozuru returned to Japan late in the war, but Hatsukari entered Hong Kong on 21 May 1945 and was engaged in anti-aircraft battles until the end of war. Following Japan's surrender, the Hatsukari was seized by the Royal Navy, and later scrapped. Ships in class Notes Books , History of Pacific War Vol.62 Ships of The Imperial Japanese Forces, Gakken (Japan), January 2008, Collection of writings by Sizuo Fukui Vol.5, Stories of Japanese Destroyers, Kōjinsha (Japan) 1993, Collection of writings by Sizuo Fukui Vol.10, Stories of Japanese Support Vessels, Kōjinsha (Japan), December 1993, Model Art Extra No.340, Drawings of Imperial Japanese Naval Vessels Part-1, Model Art Co. Ltd. (Japan), October 1989Model Art Ship Modelling Special No.25, Genealogy of Japanese Destroyers Part-2, Model Art Co. Ltd. (Japan), August 2007The Maru Special, Japanese Naval Vessels No.39 Japanese torpedo boats, Ushio Shobō (Japan), May 1980The Maru Special, War ship mechanism 4, Japanese destroyers'', Ushio Shobō (Japan), November 1982 External links Torpedo boat classes