HMS Otter (S15)
HMS Otter in harbour
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| History | |
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 United Kingdom
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| Name: | HMS Otter |
| Builder: | Scotts Shipbuilding, Greenock |
| Laid down: | 14 January 1960 |
| Launched: | 15 May 1961 |
| Commissioned: | 20 August 1962 |
| Decommissioned: | 31 July 1991 |
| Identification: | pennant number: S15 |
| Fate: | Scrapped at Pounds yard of Portsmouth by European Metal Recycling in April 1992. Parts from the Otter were sold to Chile for use on their O boats. |
| General characteristics as designed | |
| Class and type: | Oberon class |
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| Length: |
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| Beam: | 26.5 feet (8.1 m) |
| Draught: | 18 feet (5.5 m) |
| Propulsion: |
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| Speed: |
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| Complement: | 68 (6 officers, 62 enlisted) |
| Sensors and processing systems: |
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| Armament: |
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HMS Otter (S15) was an Oberon-class submarine of the Royal Navy.
The Oberon class was a direct follow on of the Porpoise-class, with the same dimensions and external design, but updates to equipment and internal fittings, and a higher grade of steel used for fabrication of the pressure hull.
As designed for British service, the Oberon-class submarines were 241 feet (73 m) in length between perpendiculars and 295.2 feet (90.0 m) in length overall, with a beam of 26.5 feet (8.1 m), and a draught of 18 feet (5.5 m). Displacement was 1,610 tons standard, 2,030 tons full load when surfaced, and 2,410 tons full load when submerged. Propulsion machinery consisted of 2 Admiralty Standard Range 16 VMS diesel generators, and two 3,000 shaft horsepower (2,200 kW) electric motors, each driving a 7 feet (2.1 m) 3-bladed propeller at up to 400 rpm. Top speed was 17 knots (31 km/h; 20 mph) when submerged, and 12 knots (22 km/h; 14 mph) on the surface. Eight 21-inch (530 mm) diameter torpedo tubes were fitted (six facing forward, two aft), with a total payload of 24 torpedoes. The boats were fitted with Type 186 and Type 187 sonars, and an I-band surface search radar. The standard complement was 68: 6 officers, 62 sailors.
Otter was laid down by Scotts Shipbuilding and Engineering Company on 14 January 1960, and launched on 15 May 1961. The boat was commissioned into the Royal Navy on 20 August 1962.
Otter was paid off on 31 July 1991.
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