| Country | United Kingdom |
|---|---|
| Builder | Chatham Dockyard |
| Laid down | 8 April 1959 |
| Launched | 24 September 1960 |
| Commissioned | 14 August 1962 |
| Decommissioned | 1990 |
| Identification | Pennant number: S14 |
| Class | Oberon-class submarine |
|---|---|
| Displacement |
|
| Length |
|
| Beam | 26.5 feet (8.1 m) |
| Draught | 18 feet (5.5 m) |
| Propulsion |
|
| Speed |
|
| Complement | 68 |
| Sensors |
|
| Armament |
|
HMS Onslaught was a British Oberon-class submarine attack submarine operated by the Royal Navy.
Design and construction
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.[1]
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).[2] Displacement was 1,610 tons standard, 2,030 tons full load when surfaced, and 2,410 tons full load when submerged.[2] Propulsion machinery consisted of 2 Admiralty Standard Range 16 VMS diesel generators, and two 3,000 horsepower (2,200 kW) electric motors, each driving a 7-foot (2.1-metre), 3-bladed propeller at up to 400 rpm.[2] Top speed was 17 knots (31 km/h; 20 mph) when submerged, and 12 knots (22 km/h; 14 mph) on the surface.[2] Eight 21-inch (530-millimetre) diameter torpedo tubes were fitted (six facing forward, two aft), with a total payload of 24 torpedoes.[2] The boats were fitted with Type 186 and Type 187 sonars, and an I-band surface search radar.[2] The standard complement was 68: 6 officers, 62 sailors.[2]
Onslaught was laid down by Chatham Dockyard on 8 April 1959, and launched on 24 September 1960.[2] The boat was commissioned into the Royal Navy on 14 August 1962.[2]
Operational history
Onslaught was first assigned to the 2nd Submarine Squadron, based in Devonport. She was reassigned to the Singapore-based 7th Squadron in 1966, and received a refit in Devonport from 1970 to 1972. She was then assigned to the 1st Squadron in 1972.[3] Her squadron assignment after 1983 is unknown.
Her patrols in the Mediterranean and Baltic seas from 1986 to 1988 are classified.[4]
Decommissioning and fate
Onslaught was paid off in 1990, and broken up at Aliaga, Turkey in 1991.[5]
References
- ^ Chant, Christopher (2005). Submarine Warfare Today: The World's Deadliest Underwater Weapons Systems. Wigston: Silverdale Books. p. [page needed]. ISBN 1-84509-158-2. OCLC 156749009
- ^ Moore, John (ed.) (1977). Jane's Fighting Ships 1977-78. Jane's Fighting Ships. 80th ed. London: Jane's Yearbooks. p. 490. ISBN 0531032779. OCLC 18207174
- ^ "H.M. Submarine Onslaught Large Patrol Submarine". britsub.x10.mx. Retrieved 2024-05-06.
- ^ "Rear-Admiral David Cooke - obituary". Daily Telegraph. 8 February 2015. Retrieved 8 February 2015.
- ^ "HM Submarine Onslaught (1960 - 1991)". kenthistoryforum.com. Retrieved 2024-05-06.
Publications
- Hutchinson, Robert (2001). Jane's submarines : war beneath the waves from 1776 to the present day. London: HarperCollins. ISBN 978-0007105588..