| Career (United Kingdom) | |
|---|---|
| Ordered: | 22 March 1983 |
| Builder: | Vickers Shipbuilding, Barrow-in-Furness |
| Laid down: | 28 October 1985 |
| Launched: | 3 November 1986 |
| Commissioned: | 14 January 1989 |
| Homeport: | HMNB Devonport, Plymouth |
| Fate: | in active service, as of 2012[update] |
| Badge: | |
| General characteristics [1] | |
| Class and type: | Trafalgar-class submarine |
| Displacement: | Surfaced: 4,740 tons Dived: 5,208 tons |
| Length: | 280.1 ft (85.4 m) |
| Beam: | 32.1 ft (9.8 m) |
| Draught: | 31.2 ft (9.5 m) |
| Propulsion: |
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| Speed: | Dived: 32 knots (59 km/h) |
| Complement: | 18 officers 112 enlisted |
| Sensors and processing systems: |
Type 2076 sonar from 2004 |
| Electronic warfare and decoys: |
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| Armament: |
Current weapons: Decommissioned weapons:
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HMS Trenchant is a Trafalgar-class nuclear-powered fleet submarine of the Royal Navy built by Vickers Shipbuilding, Barrow-in-Furness. Trenchant is currently in service and is based at HMNB Devonport.
The submarine was ordered on 22 March 1983. She was laid down by Vickers Shipbuilding on 28 October 1985, was launched on 3 November 1986, and was commissioned into the Royal Navy on 14 January 1989.[1]
Trenchant is the third vessel and the second submarine of the Royal Navy to be named for the characteristic of vigour and incisiveness. The first was the World War II T-class submarine Trenchant.
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On 22 November 1990, the nets of the fishing vessel Antares were snagged by Trenchant. Antares was pulled under with the loss of all four members of the crew.[2][3]
In July 1997, the submarine ran aground off the western coast of Australia.[4] While approaching Fremantle, Western Australia, the submarine remained at a depth of 200 metres (660 ft) and grounded when she made contact with the continental shelf, coming to rest on a sloping patch of seafloor.[4] Trenchant was able to free herself, and an inspection by divers reported no significant damage.[4]
Trenchant tested the non-hull-penetrating optronic mast in 1998. She also trialled a camouflage paint scheme comprising jagged shapes of various colours, including pale blue.
On 21 June 2007, the submarine became the first Royal Navy vessel to fire the new Block IV Tomahawk cruise missile in a live firing trial in the Gulf of Mexico off the United States coast.
In late 2009, Trenchant entered the Devonport submarine refit complex to undertake a 2 year refit and upgrade programme. Upon completion of the programme, the submarine underwent a rededication service on 6 June 2011 to welcome the boat back to active service.[5]
Trenchant is affiliated with the following military and civilian organisations, bodies & individuals:[5]
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