World War II naval ship of Japan
No.8 in 1938
Class overview
Name No.4 class submarine chaser
Builders
Operators
Preceded by No.3 class
Succeeded by No.13 class
Cost 1,579,000 JPY
Built 1937 – 1939
In commission 1938 – 1960
Planned 9
Completed 9
Lost 7 (or 6)[ 1]
Retired 2 (or 3)[ 1]
General characteristics
Type Submarine chaser
Displacement
291 long tons (296 t) standard
309 long tons (314 t) trial
Length
56.2 m (184 ft 5 in) overall
55.5 m (182 ft 1 in) waterline
Beam 5.6 m (18 ft 4 in)
Draught 2.1 m (6 ft 11 in)
Propulsion 2 × Kampon Mk.22 Model 6 diesels, 2 shafts, 2,600 bhp
Speed 20.0 knots (23.0 mph; 37.0 km/h)
Range 2,000 nmi (3,700 km) at 14 kn (16 mph; 26 km/h)
Complement 59
Armament
2 × 40 mm heavy machine guns
36 × depth charges
2 × Type 94 depth charge projectors
1 × depth charge thrower
1 × Type 93 active sonar
1 × Type 93 hydrophone
No.4 , November 1944
2 × 40 mm heavy machine guns
3 × Type 96 25 mm AA guns
36 × depth charges
2 × Type 94 depth charge projectors
2 × depth charge throwers (estimate)
1 × 13-Gō surface search radar
1 × Type 3 active sonar
1 × Type 93 hydrophone
The No.4 class submarine chaser (第四号型駆潜艇, , Dai 4 Gō -gata Kusentei) was a class of submarine chasers of the Imperial Japanese Navy (IJN), serving during and after World War II . Nine vessels were built between 1937 and 1939 under the Maru 3 Programme .
Design
Developed under project number was K7 , the No.4 class submarine chaser was an improved variant of the No.3 class , with increased freeboard . Other general features were the same as the No.3 class. Their design was elaborate, because the Navy Technical Department (Kampon) devoted itself to making them small. However, the design was not able to accept additional anti-aircraft guns and depth charges.
Ships in class
Ship #
Ship
Builder
Laid down
Launched
Completed
Fate
62
No.7 [ 2]
Tsurumi Iron Works
30 October 1937
10 June 1938
15 November 1938
Sunk by aircraft at east of Car Nicobar on 11 April 1945.
63
No.8
Tama Shipyards
10 January 1938
9 August 1938
30 November 1938
Sunk by HMS Trenchant and HMS Terrapin at Strait of Malacca on 4 March 1945.
64
No.4
Ōsaka Iron Works, Sakurajima Factory
19 January 1938
13 September 1938
28 December 1938
Struck a naval mine and sank at Surabaya on 13 August 1945.
65
No.5
Mitsubishi, Yokohama Shipyard
25 January 1938
28 July 1938
6 December 1938
Scuttled by Royal Navy off Singapore on 11 July 1946. Decommissioned on 10 August 1946.
66
No.11
Tsurumi Iron Works
19 January 1938
28 June 1938
2 February 1939
Sunk by aircraft at west of Buka Island on 6 November 1943.
67
No.12
Tama Shipyards
15 July 1938
8 February 1939
30 April 1939
Probably sunk by USS Bluegill east of Mindanao on 13 August 1944.[ 1] Decommissioned on 30 September 1945.
68
No.10
Ōsaka Iron Works, Sakurajima Factory
16 September 1938
31 January 1939
15 June 1939
Aground at Angaur on 2 May 1944. Later scuttled.
69
No.9
Mitsubishi, Yokohama Shipyard
10 May 1938
15 October 1938
9 May 1939
Decommissioned on 20 December 1945. Surrendered to Republic of China on 3 October 1947, and renamed Haida . Renamed Fuling (PC-107) in January 1951. Renamed Minjiang in 1954. Decommissioned in 1960.
70
No.6
Tsurumi Iron Works
5 July 1938
6 February 1939
20 May 1939
Heavy damaged by aircraft at Palau on 30 March 1944. Later sank in shallow water.
^ a b c Another opinion: The No.12 was survived war at Palau.
^ Submarine chaser No.7 (第7号駆潜艇 , Dai 7 Gō Kusentei ) . The same shall apply hereinafter.
Bibliography
Ships of the World special issue Vol.45, Escort Vessels of the Imperial Japanese Navy , "Kaijinsha" . , (Japan), February 1996
The Maru Special, Japanese Naval Vessels No.49, Japanese submarine chasers and patrol boats , "Ushio Shobō" . (Japan), March 1981
"Japanese Subchasers" . Combinedfleet.com.