HMS Trenchant (S91)
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| Career (UK) |  |
|---|---|
| Ordered: | March 22, 1983 |
| Laid down: | October 28, 1985 |
| Launched: | November 3, 1986 |
| Commissioned: | January 14, 1989 |
| Status: | active in service |
| General Characteristics | |
| 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: | Rolls-Royce PWR1 nuclear reactor 2 × GEC turbines 1 × shaft pump jet 15,000 hp (11 MW) motor for emergency drive emergency retractable propellor 2 × W H Allen turbo generators 2 MW 2 × Paxman diesel alternators 2,800 hp (2.1 MW) |
| Speed: | Dived: 32 knots (59 km/h) |
| Complement: | 18 officers 112 enlisted |
| Sensors and processing systems: | Ferranti/Gresham Dowty DCB/DCG Type 2072 hull-mounted flank array passive sonar Plessey Type 2020 or Marconi/Plessey Type 2074 hull-mounted active and passive search and attack sonar Ferranti Type 2046 towed array passive search sonar Thomson Sintra Type 2019 PARIS or Thorn EMI 2082 passive intercept and ranging sonar Marconi Type 2077 short range active classification sonar Kelvin Hughes Type 1007 I band navigation radar Pilkington Optronics CK34 search periscope Pilkington Optronics CH84/CM010 attack periscope Type 2076 sonar from 2004 |
| Electronic warfare and decoys: | 2 × SSE Mk8 launchers for Type 2066 and Type 2071 torpedo decoys RESM Racal UAP passive intercept CESM Outfit CXA<bt>SAWCS decoysd from 2002 |
| Armament: | 5 × 21 in (533 mm) torpedo tubes Spearfish torpedoes (originally Tigerfish torpedoes) with 20 reloads UGM-84 Harpoon submarine-launched cruise missile Mines UGM-109 Tomahawk from 2004 |
HMS Trenchant (S91) is a Trafalgar-class submarine of the Royal Navy.
HMS Trenchant was responsible for the sinking of the Kintyre fishing boat Antares with the loss of its four crewmen after snagging the boat’s nets.
See HMS Trenchant for other ships of the same name.
| Trafalgar-class submarine |
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Trafalgar | Turbulent | Tireless | Torbay | Trenchant | Talent | Triumph |
| List of submarines of the Royal Navy List of submarine classes of the Royal Navy |
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