| Built By: | Vickers (Barrow) |
| Build Group: | SSN 4b |
| Fate: | HMS Talent and Trenchant were decommissioned together at Devonport Naval Base on 13-05-2022. |
| 2005: | Hugh Dominic Beard |
Launched by Lady Meriel Hunt, wife of Admiral Sir Nicholas Hunt, Commander in Chief Fleet
| 22-03-1983 | Ordered from Vickers, Barrow |
| 12-07-1984 | Laid Down |
| 03-11-1986 | Launched |
| 14-01-1989 | Completed |
| 07-02-1989 | Left Barrow |
| 12-05-2013 | HMS Trenchant returned home to Devonport 11 months to the day she sailed on what became the longest patrol ever completed by one of the Royal Navy’s hunter-killer boats – beating the old record by HMS Tireless by 12 days. At continued high readiness as the United Kingdoms front-line strike asset, the submarine spent 267 days east of Suez, continuing the nuclear-powered submarine presence that has been established there since 2001. Operating under joint command, the submarine has completed several periods of national tasking and contributed to NATO operations against terrorism and counter narcotics. During this time the vessel has visited six different ports: Fujairah, UAE; the British Indian Ocean Territory – Diego Garcia; the Kingdom of Bahrain; Aqaba, Jordan; Souda Bay, Crete; and Gibraltar. HMS Trenchant conducted training and multi-national exercises with seven UK warships, a French submarine, multiple US warships and auxiliaries, a US submarine and a range of multinational aircraft - to develop the ability to conduct joint operations. The deployment covered 38,800nm (the equivalent of 1¾ times around the world) and the submarine has spent over 4,700 hours underwater – the equivalent of 6½ months. The submarine would now undergo a two-year maintenance period readying the boat for renewed operations. |
| 07-08-2016 | The crew of HMS Trenchant staged a ceremony in Plymouth marking the vessel’s readiness for operations. The occasion marked the submarine’s reintegration into the fleet after undergoing a maintenance and weapon and sensors upgrade in Devonport Naval Base. The submarine holds the RN submarine record for a continuous deployment of 11 months in 2013. A rededication ceremony is a traditional part of any Royal Navy vessel’s life after completing a period of refit and improvement. The event was attended by the submarine’s sponsor, Lady Meriel Hunt. |
| 21-02-2017 | HMS Trenchant re-joined the operational fleet. The Plymouth-based boat was alongside in Devonport Naval Base while her engineers were busy finishing the final stages of a maintenance period. |
| 13-05-2022 | HMS Talent and Trenchant were decommissioned together at Devonport Naval Base on Friday. Crews from both nuclear-powered attack boats paraded in Plymouth for the final time in front of HRH The Princess Royal, HMS Talent’s patron, as well as high-profile guests and former commanding officers. |
| Primary Roles | Anti-submarine/surface vessel warfare |
| Secondary Roles | Land attack (optional), Minelaying, Designed for littoral, deep sea or world-wide deployment. |
| Length overall | 91.7m |
| Beam | 10.4m |
| Draught | 10m (max) |
| Displacement | 6,000 tons (surface) |
| 6,500 tons (submerged) | |
| Diving Depth | over 300m |
| Speed | Submerged 32 knots (design) |
| No. of shafts | 1 |
| Reactor | 1 x Rolls Royce PWR-2 |
| Turbines | 2 x GEC Turbines |
| Generators | 2 x WH Allen turbo generators, 2 Paxman diesel alternators (2,800 hp) |
| Power | 15,500 shp |
| Endurance | 90 day patrol |
| Propulsion | Pump jet propulsor |
| Armament | 5 x 533mm missile tubes |
| Total of 38 weapons | |
| Sub Harpoon missiles (SSM) | |
| Spearfish torpedoes | |
| Tigerfish torpedoes | |
| Tomahawk missiles (SLCM) | |
| Mines (in lieu of torpedoes) | |
| Countermeasures | 2 x SSE Mk 10 Launchers for Type 2066 and 2071 decoys |
| ESM; Racal UAP 3, passive intercept | |
| Navigation | Kelvin Hughes Type 1007 |
| Combat Data Systems | BAeSEMA SMCS |
| Weapons Control | Dowty tactical control system SAFS 3 FCS |
| Sonars | Marconi/Ferranti Type 2076 integrated suite with reelable towed array |
| Complement | 108 (12 officers) + 12 spare |
| Class: | 1942 - 1946: X Class |
| Built By: | Vickers (Barrow) |
| Build Group: | X |
| Fate: | |
| Lost during an attack on on German Battleship Tirpitz in Altenfjord Norway on 22 Sept 1943 | |
11 pages added or updated in the last 8 month
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| Primary Roles | Anti-submarine/surface vessel warfare |
| Secondary Roles | Land attack (optional), Minelaying, Designed for littoral, deep sea or world-wide deployment. |
| Length overall | 91.7m |
| Beam | 10.4m |
| Draught | 10m (max) |
| Displacement | 6,000 tons (surface) |
| 6,500 tons (submerged) | |
| Diving Depth | over 300m |
| Speed | Submerged 32 knots (design) |
| No. of shafts | 1 |
| Reactor | 1 x Rolls Royce PWR-2 |
| Turbines | 2 x GEC Turbines |
| Generators | 2 x WH Allen turbo generators, 2 Paxman diesel alternators (2,800 hp) |
| Power | 15,500 shp |
| Endurance | 90 day patrol |
| Propulsion | Pump jet propulsor |
| Armament | 5 x 533mm missile tubes |
| Total of 38 weapons | |
| Sub Harpoon missiles (SSM) | |
| Spearfish torpedoes | |
| Tigerfish torpedoes | |
| Tomahawk missiles (SLCM) | |
| Mines (in lieu of torpedoes) | |
| Countermeasures | 2 x SSE Mk 10 Launchers for Type 2066 and 2071 decoys |
| ESM; Racal UAP 3, passive intercept | |
| Navigation | Kelvin Hughes Type 1007 |
| Combat Data Systems | BAeSEMA SMCS |
| Weapons Control | Dowty tactical control system SAFS 3 FCS |
| Sonars | Marconi/Ferranti Type 2076 integrated suite with reelable towed array |
| Complement | 108 (12 officers) + 12 spare |
| Class: | 1942 - 1946: X Class |
| Built By: | Vickers (Barrow) |
| Build Group: | X |
| Fate: | |
| Lost during an attack on on German Battleship Tirpitz in Altenfjord Norway on 22 Sept 1943 | |
11 pages added or updated in the last 8 month
Please help to maintain this site by reporting any Errors, Broken Links, Information or Site Issues on this page using this button
If you find this site useful, please consider supporting my work with a small Donation. Or you can make a big one if you like :)
Please Note: Donations made using this option go directly to the site owner and not to the Submariners Association.
Thankyou for your support.
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