- No.1 class auxiliary submarine chaser
No.1 class on 10 January 1945
Class overview Name: No.1-class auxiliary submarine chaser Builders: Hull
Saga Iron Works
Shikoku Dock Company
Jinen Iron Works
Tokushima Limited Sipyard
Hayashikane Heavy Industries
Fukuoka Iron Works
Fukushima Iron Works
Funaya Iron Works
Yamanishi Iron Works
Fitted with armaments
Kure Naval Arsenal
Maizuru Naval Arsenal
Sasebo Naval Arsenal
Yokosuka Naval Arsenal
Operators: Imperial Japanese Navy
Japan Maritime Safety Agency
Japan Coastal Safety Force (later Japan Maritime Self-Defence Force)
Government of Japan
Republic of China Navy
People's Liberation Army Navy
Built: 1942 (?)–1945 In commission: 1943–1971 Planned: 200 Completed: 200 Lost: 81 Retired: 119 General characteristics Type: Submarine chaser Displacement: 130 long tons (132 t) standard Length: 29.20 m (95 ft 10 in) overall Beam: 5.65 m (18 ft 6 in) Draught: 1.97 m (6 ft 6 in) Propulsion: 1 × intermediate diesel
shingle shaft, 400 bhp
Speed: 11.0 knots (12.7 mph; 20.4 km/h) Range: 1,000 nmi (1,900 km) at 10.0 kn (11.5 mph; 18.5 km/h) Complement: 32 Armament: • 1 × 7.7 mm machine gun
• 22 × depth charges
• 1 × dunking hydrophone
• 1 × simple sonar
The No.1 class auxiliary submarine chaser (第一号型駆潜特務艇, Dai Ichi Gō-gata Kusen-Tokumutei ) was a class of submarine chasers of the Imperial Japanese Navy (IJN), serving during World War II. 200 vessels were built under the Maru Kyū Programme (Ship # 500–599) and the Maru Sen Programme (Ship # 2001–2100).
- In 1939, the IJN wanted the point-defence subcahser for defence of their naval bases. In 1940, they built small prototype submarine chasers (No.1182 and No.1183) from a standard wooden fishing boat.
- The IJN made a try of them, and they confirmed that it was effective subchaser. In 1941, the IJN ordered 100 vessels.
- In the wartime, their performance were good. However, they were always troubled by insect damage, because their hull was wood.
- They who survived war played an active part for minesweeping of magnetic mines.
Ships in class
Maru Kyū Programme vessels. (Ship # 500–599)
- Aomori Prefecture on 21 April 1948.
- Ministry of Education on 29 May 1948.
- Maru Sen Programme vessels. (Ship # 2001–2100)
- Kanagawa Prefecture on 16 February 1948.
- No.2064 vessel (Aux. Submarine Chaser No.214), transferred to Karafuto Prefecture, before completed.
- edit] Bibliography
Japanese auxiliary ship classes of World War II
- 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, Ushio Shobō (Japan), March 1981
Cargo ships Colliers and Oilers
Landing ships Minelayers and Cable layer Minesweepers Patrol boats Seaplane tenders
Survey ships Target ships Training ships S - Single ship of class • C - Converted to ship type • I - Incomplete until the end of war
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