NAVYPEDIA

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37-go

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
第28号駆潜艇 [28-go]			Nippon Kokan		30.1.1942	5.1942	sunk 2.2.1945
第29号駆潜艇 [29-go]			Harima		10.12.1941	4.1942	sunk 18.2.1944
第30号駆潜艇 [30-go]			Tamano		30.1.1941	5.1942	sunk 24.12.1944
第31号駆潜艇 [31-go]			Ishikawajima		7.3.1942	6.1942	sunk 12.1.1945
第32号駆潜艇 [32-go]			Nippon Kokan		22.5.1942	8.1942	sunk 24.9.1944
第33号駆潜艇 [33-go]			Tamano		16.5.1942	8.1942	sunk 21.3.1945
第34号駆潜艇 [34-go]			Harima		20.12.1941	8.1942	sunk 26.3.1945
第35号駆潜艇 [35-go]			Hakodate		31.12.1942	2.1943	sunk 23.2.1945
第36号駆潜艇 [36-go]			Ishikawajima		28.7.1942	10.1942	sunk 19.11.944
第37号駆潜艇 [37-go]			Tamano		10.8.1942	10.1942	sunk 22.5.1945
第38号駆潜艇 [38-go]			Nippon Kokan		31.8.1942	12.1942	captured 8.1945, to Soviet Union 10.1947
第39号駆潜艇 [39-go]			Harima		26.5.1942	10.1942	sunk 16.2.1944
第40号駆潜艇 [40-go]			Hitachi, Innoshima		1942	3.1943	sunk 19.2.1944
第41号駆潜艇 [41-go]			Kawaminami, Koyagi		1942	1.1943	captured 8.1945, scuttled 11.7.1946
第42号駆潜艇 [42-go]			Hitachi, Innoshima		1942	5.1943	sunk 10.8.1945
第43号駆潜艇 [43-go]			Niigata		1942	4.1943	sunk 12.1.1945
第44号駆潜艇 [44-go]			Kawaminami, Koyagi		1942	5.1943	captured 8.1945, BU 1948
第45号駆潜艇 [45-go]			Hakodate		1943	10.1943	sunk 29.11.1944
第46号駆潜艇 [46-go]			Hitachi, Innoshima		1943	9.1943	sunk 25.11.1944
第47号駆潜艇 [47-go]			Kawaminami, Koyagi		1943	8.1943	captured 8.1945, to USA 10.1947, BU
第48号駆潜艇 [48-go]			Niigata		1943	7.1943	sunk 14.7.1945
第49号駆潜艇 [49-go]			Hakodate		1943	1.1944	captured 8.1945, to China 10.1947 (楊皇 [Yang Lung])
第50号駆潜艇 [50-go]			Hitachi, Innoshima		1943	11.1943	sunk 18.7.1944
第51号駆潜艇 [51-go]			Kawaminami, Koyagi		1943	11.1943	captured 8.1945, foundered 10.12.1945
第52号駆潜艇 [52-go]			Naniwa		1943	11.1943	captured 8.1945, BU 1948
第53号駆潜艇 [53-go]			Naniwa		1943	3.1944	sunk 28.11.1944
第54号駆潜艇 [54-go]			Niigata		1943	11.1943	sunk 25.3.1944
第55号駆潜艇 [55-go]			Hakodate		1943	5.1944	sunk 12.9.1944
第56号駆潜艇 [56-go]			Naniwa		1944	7.1944	captured 8.1945, BU 1946
第57号駆潜艇 [57-go]			Hakodate		1944	10.1944	sunk 12.6.1945
第58号駆潜艇 [58-go]			Niigata		1943	1.1944	sunk 22.5.1945
第60号駆潜艇 [60-go]			Niigata		1943	3.1944	captured 8.1945, BU 1948
第61号駆潜艇 [61-go]			Niigata		1944	5.1944	sunk 9.1.1945
第63号駆潜艇 [63-go]			Niigata		1944	6.1944	sunk 26.3.1945

Technical data

Displacement standard, t	420
Displacement full, t	442
Length, m	46.5 pp 49.0 wl 51.0 oa
Breadth, m	6.70
Draught, m	2.63
No of shafts	2
Machinery	2 diesels
Power, h. p.	1700
Max speed, kts	16
Fuel, t	diesel oil
Endurance, nm(kts)
Armament	completed 1942-1944: 1 x 1 - 76/40 11-shiki, 2 x 1 - 13.2/76, 2 DCT (36) completed 1944: 1 x 1 - 76/40 11-shiki, 1 x 3 - 25/60 96-shiki, 2 x 1 - 13.2/76, 2 DCT (36)
Electronic equipment	completed 1942-1943: 93-shiki sonar, 93-shiki hydrophone completed 1943-1944: 2-shiki 2-go radar (on some), 93-shiki sonar, 93-shiki hydrophone completed 1944: 2-shiki 2-go or 3-shiki 1-go radar, 93-shiki or 3-shiki sonar, 93-shiki hydrophone
Complement	80

Standard scale images

Graphics

Project history

First submarine chasers (Ch1, Ch3 and Ch4 classes) not quite satisfied Naval Staff: first of all insufficient seaworthiness and mediocre manoeuvrability were marked. In 1939 design of new chaser has been prepared. As a basis for it the same ChЗ and Ch4 have served, but at the expense of wider and shorter hull new ship differed by much better manoeuvrability and had very small tactical diameter. Bigger, in comparison with a prototype, draught has positively affected seaworthiness.

Under 4th Supplementary programme of 1939 and additional programme of 1940 15 chasers of Ch13 class have been built. Subsequently on War programme of 1941/1942 62 more ships on slightly modified design (Ch28) were ordered: 34 ships from which entered service and remaining (Ch62, 64-89) were cancelled in 1943.

Modernizations

1944, all earlier ships: + 1 x 3 - 25/60 96-shiki, 1 DCR

1944-1945, many earlier ships: + 2-shiki 2-go or 3-shiki 1-go radar

Naval service

Ch39 was sunk 16.2.1944 off New Ireland by US aircraft. Ch29 was sunk off Truk 18.2.1944 by US aircraft of TF.58. Ch40 was sunk 19.2.1944 off New Ireland by US aircraft. Ch54 was sunk 25.3.1944 in 75nm N off Chichijima bu US submarine Pollack. Ch50 was sunk 18.7.1944 in 200nm W off Chichijima by US submarine Plaice. Ch55 was sunk 12.9.1944 NE off Cebu by US carrier aircraft. Ch36 was sunk 19.11.1944 off Subic Bay by US carrier aircraft. Ch46 was sunk 25.11.1944 off Masbate by US aircraft. Ch53 was sunk 28.11.1944 off Ormock Bay by US destroyers Waller, Saufley, Renshaw and Pringle. Ch45 was sunk 29.11.1944 W off Leyte by US aircraft. Ch30 was sunk 24.12.1944 NE off Sarawak, possibly by US submarine Barbero. Ch32 was sunk 24.12.1944 S off Mindoro by US carrier aircraft. Ch61 was sunk 9.1.1945 NW off Takao by US carrier aircraft. Ch31 was sunk 12.1.1945 W off Cape Padaran by US carrier aircraft. Ch43 was sunk 12.1.1945 in Camranh Bay by US carrier aircraft. Ch28 was sunk 2.2.1945 off Mindanao by US aircraft. Ch35 was sunk 23.2.1945 off Cape Padaran by US aircraft. Ch33 was sunk 21.3.1945 S off Cape Varella by US carrier aircraft. Ch34 was sunk 26.3.1945 E off Khota Andaman by British destroyers Saumarez, Volage, Vigilant and Virago. Ch63 was sunk at the same place 26.3.1945 by British destroyers Volage, Vigilant and Virago. Ch37 and Ch58 were sunk 22.5.1945 W off Tairashima by US carrier aircraft. Ch57 was sunk 12.7.1945 in 45nm NW off Sabang by British destroyers Tartar, Eskimo and Nubian. Ch48 was sunk by US aircraft 14.7.1945 off Kamaishi. Ch42 was damaged 3.8.1945 off Ozaki by US submarine and sunk in Onagawa Wan by US and British carrier aircraft 10.8.1945.

Ch51 was captured in August, 1945 in severely damaged condition (after US air attack 7.3.1945) and foundered there 10.12.1945. Ch52 was captured in unserviceable condition.