Summary
The Natsushio-class submarines were a pair of submarines constructed and operated by the Japan Maritime Self-Defense Force during the Cold War. They were a development of the Hayashio-class submarines and are sometimes considered the same class. They were small and limited in capability but were thought to be a successful class. They entered service in 1963–1964 and were deleted in 1978.
 JS Fuyushio
| |
| Class overview | |
|---|---|
| Name | Natsushio class |
| Builders | |
| Operators |  Japan Maritime Self-Defense Force |
| Preceded by | Hayashio class |
| Succeeded by | Ōshio class |
| Built | 1961–1963 |
| In commission | 1963–1978 |
| Planned | 2 |
| Completed | 2 |
| Retired | 2 |
| General characteristics | |
| Type | Coastal attack submarine |
| Displacement | 690 long tons (701 t) surfaced |
| Length | 61 m (200 ft 2 in) |
| Beam | 6.5 m (21 ft 4 in) |
| Draft | 4.1 m (13 ft 5 in) |
| Propulsion |
|
| Speed |
|
| Complement | 43 |
| Armament | 3 × 533 mm (21 in) torpedo tubes |
Design and description edit
The Natsushios were a development of the preceding Hayashio class and are sometimes considered the same class.[1][2][3] They shared many of the same characteristics with small design improvements. They were small submarines with limited capability[1] but considered handy and a successful class.[4] They were air-conditioned and had good habitability for the crews. The submarines measured 61 meters (200 ft 2 in) long overall with a beam of 6.5 m (21 ft 4 in) and a draft of 4.1 m (13 ft 5 in). The submarines had a standard displacement of 780 long tons (790 t), with a surfaced displacement of 690 long tons (700 t) and 850 long tons (860 t) submerged.[1][3]
The vessels were powered by a diesel-electric system. Two shafts were powered by two Sulzer-Mitsubishi diesel engines creating 1,350 brake horsepower (1,010 kW) and two electric motors creating 1,700 shaft horsepower (1,300 kW). This gave the submarines a maximum speed of 12 knots (22 km/h; 14 mph) surfaced and 15 knots (28 km/h; 17 mph) submerged.[1][a] The Natsushios were armed with three 533-millimeter (21 in) torpedo tubes in the bow. They had a crew of 43.[1]
Boats in class edit
| Natsushio class construction data[1] | ||||||
|---|---|---|---|---|---|---|
| Pennant no. | Name | Laid down | Launched | Commissioned | Fate | |
| SS-523 | Natsushio (なつしお) | 5 December 1961 | 18 September 1962 | 29 June 1963 | Deleted 20 March 1978 | |
| SS-524 | Fuyushio (ふゆしお) | 6 December 1961 | 14 December 1962 | 17 September 1963 | Deleted 20 June 1978 | |
See also edit
- Quebec-class submarine - Soviet Navy
- Draken-class submarine - Royal Swedish Navy
- Toti-class submarine - Italian Navy
- Ro-100-class submarine - Imperial Japanese Navy
- Ha-201-class submarine - Imperial Japanese Navy
Notes edit
Citations edit
- ^ a b c d e f Gardiner, Chumbley & Budzbon 1995, p. 235.
- ^ a b Blackman 1969, p. 181.
- ^ a b Couhat 1976, p. 243.
- ^ a b Moore 1976, p. 281.
References edit
- Blackman, Raymond V. B., ed. (1969). Jane's Fighting Ships 1969–70. New York: McGraw-Hill Book Company. OCLC 30910135.
- Couhat, Jean Labayle, ed. (1976). Combat Fleets of the World 1976/77: Their Ships, Aircraft, and Armament. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-183-8.
- Gardiner, Robert; Chumbley, Stephen & Budzbon, Przemysław, eds. (1995). Conway's All the World's Fighting Ships 1947–1995. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-132-7.
- Moore, John, ed. (1976). Jane's Fighting Ships 1976–77 (79th ed.). New York: Franklin Watts Incorporated. ISBN 0-531-03261-2.