Natsushio-class submarine
.jpg) 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 |
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. Similar to its slightly earlier siblings, they were small and limited in capability, but similar to the preceding Hayashio class, were thought to be a success. They entered service in 1963–1964 and were decommissioned in 1978.
Design and description
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 were considered handy and successful nonetheless.[4] They were air-conditioned and had good habitability for their 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
| 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
Equivalent submarines of the same era
Notes
Citations
- 1 2 3 4 5 6 Gardiner, Chumbley & Budzbon 1995, p. 235.
- 1 2 Blackman 1969, p. 181.
- 1 2 Couhat 1976, p. 243.
- 1 2 Moore 1976, p. 281.
References
- 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.