No.13-class submarine chaser

	No.13 class No.14 in March 1941
Class overview
Name	No.13 class submarine chasers; No.13 class; No.28 class; No.60 class;
Builders	Niigata Iron Works (7); Nihon Kōkan (6); Hakodate Dock Corporation (5); Harima Zōsen Corporation (5); Tōkyō Ishikawajima Shipyard (4); Hitachi Zōsen (4); Kawanami Kōgyō Corporation (4); Tama Shipyards (3); Naniwa Dock Company (3); Mitsubishi Heavy Industries (2); Ōsaka Iron Works (3); Tama Shipyards (2); Tsurumi Iron Works (1); Fujinagata Shipyards (0);
Operators	Imperial Japanese Navy; Republic of China Navy; Soviet Navy;
Preceded by	No.4 class submarine chaser
Succeeded by	No.1 class coast defence boat ; No.101 class coast defence boat; (jp:海防艇)
Built	1939–1944
In commission	1940–1956
Planned	77
Completed	49
Canceled	28
Lost	35
Retired	14
General characteristics
Type	Submarine chaser
Displacement	No.13 class; 438 long tons (445 t) standard; No.28 class and No.60 class; 420 long tons (427 t) standard;
Length	51.00 m (167 ft 4 in) overall
Beam	6.70 m (22 ft 0 in)
Draught	No.13 class; 2.75 m (9 ft 0 in); No.28 class and No.60 class; 2.63 m (8 ft 8 in);
Propulsion	No.13, No.14, No.15 and No.16; 2 × Kampon Mk.23A Model 8 diesels, 2 shafts, 1,700 bhp; all others; 2 × Kampon Mk.23B Model 8 diesels, 2 shafts, 1,700 bhp;
Speed	16.0 knots (18.4 mph; 29.6 km/h)
Range	2,000 nmi (3,700 km) at 14 kn (16 mph; 26 km/h)
Complement	No.13 class; 68; No.28 class and No.60 class; 80;
Armament	No.13 on 1940; 1 × 76.2 mm (3.00 in) L/40 AA gun; 2 × Type 93 13.2 mm (0.52 in) AA guns; 36 × Type 95 depth charges; 2 × Type 94 depth charge projectors; 1 × depth charge thrower; 1 × Type 93 active sonar; 1 × Type 93 hydrophone; No.30 in August 1944; 1 × 76.2 mm L/40 AA gun; 3 × Type 96 25 mm AA guns; 2 × Type 93 13 mm AA guns; 36 × Type 2 depth charges; 2 × Type 94 depth charge projectors; 2 × depth charge throwers; 1 × 22-Gō surface search radar; 1 × Type 3 active sonar; 1 × Type 93 hydrophone;

The No.13 class submarine chaser (第十三号型駆潜艇,, Dai 13 Gō-gata Kusentei) were a class of submarine chasers of the Imperial Japanese Navy (IJN), serving during and after World War II; there were three sub classes, however the IJN's official document calls all of them the No.13 class.