Chidori-class torpedo boat

Chidori on trial run off Maizuru, after 1934 refit
Class overview
Name	Chidori-class torpedo boat
Builders	Maizuru Naval Construction Department Fujinagata Shipbuilding Yard
Operators	Imperial Japanese Navy
Preceded by	Hayabusa class
Succeeded by	Ōtori class
Built	1931–34
In service	1933–45
In commission	1933–47
Planned	20
Completed	4
Cancelled	16 (replaced by Ōtori-class)
Lost	3
Retired	1
General characteristics as built
Class and type	Chidori-class
Type	Torpedo Boat
Displacement	535 long tons (544 t) for standard 738 long tons (750 t) full load
Length	82.0 m (269 ft 0 in) overall 79.0 m (259 ft 2 in) waterline
Beam	7.40 m (24 ft 3 in) 8.10 m (26 ft 7 in) w/ bulges
Draft	2.50 m (8 ft 2 in) (average)
Propulsion	2 × Kampon water tube boilers, 2 × Kampon impulse turbines, 2 shafts, 11,000 shp (8,200 kW)
Speed	30.0 knots (34.5 mph; 55.6 km/h)
Range	3,000 nmi (5,600 km) at 14 kn (16 mph; 26 km/h)
Complement	120
Armament	3 × 127 mm (5.0 in) Type 3 guns (1 × 2, 1 × 1) 1 × 12.7 mm (0.50 in) machine gun 4 × 533 mm (21.0 in) torpedo tubes (2 × 2) 8 × 533 mm (21.0 in) torpedoes 9 × depth charges
General characteristics after rebuilding
Displacement	600 long tons (610 t) (standard) 815 long tons (828 t) (full load)
Draft	2.38 m (7 ft 10 in)
Speed	28.0 knots (32.2 mph; 51.9 km/h)
Range	1,600 nmi (3,000 km) at 14 kn (16 mph; 26 km/h)
Armament	Chidori, November 1934 3 × 12 cm/45 3rd Year Type naval guns (3 × 1) 1 × 13.2 mm (0.52 in) machine gun 2 × 533 mm (21.0 in) torpedo tubes (1 × 2) 9 × depth charges Hatsukari, December 1944 2 × 12 cm/45 3rd Year Type naval guns (2 × 1) 10 Type 96 25mm AA guns (10 × 1) 2 × 533 mm (21.0 in) torpedo tubes (1 × 2) 48 × depth charges

The 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 Tomozuru (友鶴) 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.