{| {{Infobox ship characteristics |Hide header= |Header caption=after rebuilding |Ship class= |Ship type= |Ship tonnage= |Ship displacement=* (standard) (full load) |Ship length= |Ship beam= |Ship height= |Ship draught= |Ship draft= |Ship depth= |Ship hold depth= |Ship decks= |Ship deck clearance= |Ship ramps= |Ship ice class= |Ship power= |Ship propulsion= |Ship sail plan= |Ship speed= |Ship range= at |Ship endurance= |Ship test depth= |Ship boats= |Ship capacity= |Ship troops= |Ship complement= |Ship crew= |Ship time to activate= |Ship sensors= |Ship EW= |Ship armament=*Chidori, November 19343 × 12 cm/45 3rd Year Type naval guns (3 × 1) 1 × machine gun 2 × torpedo tubes (1 × 2) 9 × depth chargesHatsukari, December 19442 × 12 cm/45 3rd Year Type naval guns (2 × 1) 10 Type 96 25mm AA guns (10 × 1) 2 × torpedo tubes (1 × 2) 48 × depth charges |Ship armour= |Ship armor= |Ship aircraft= |Ship aircraft facilities= |Ship notes= }} |} The {{nihongo|Chidori-class torpedo boat'''|千鳥型水雷艇|Chidori-gata suiraitei}} was an Imperial Japanese Navy class of torpedo boats that were built before and served during the Second World War. The design initially proved to have too much armament for its small displacement, and the capsizing of shortly after completion in heavy weather resulted in a scandal which called into question the basic design of many Japanese warships of the time. After extensive modification, the class became satisfactory sea-boats and saw service in the Battle of the Philippines and the Dutch East Indies campaign as escorts and continued in that role for the rest of the war. Three were sunk during the war and the fourth was seized by the British at Hong Kong after the end of the war, where it was scrapped later. Background Per the terms of the 1930 London Naval Treaty, the Imperial Japanese Navy was constricted on the total tonnage of destroyers it was allowed to construct. In response, Japanese naval planners designed a 600-ton class vessel (which was small enough not to be limited by the treaty), but planned to arm it with half the armament of a destroyer. The new vessels were designated "torpedo boats" to further ensure that they would not be considered as "destroyers". Four vessels were ordered as part of the 1931 Maru 1 Programme, out of a planned twenty. Description As initially completed the Chidori-class torpedo vessels displaced at standard load, but displaced at full load. They were