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Built as nuclear attack submarine under yard No 1109 by Vickers Shipbuilding and Engineering Ltd., Barrow in Furness.
30 May 1986 ordered.
03 September 1986 launched under the name HMS VANGUARD (S28) one of the Vanguard class of which four were built.
Displacement 13.650 surfaced, 15.980 tons dived, dim. 149.9 x 12.8 x 12m. (draught).
Powered by one Rolls-Royce pressurised water reactor (PWR-2) 27.500 hp., Two GEC geared steam turbines, one shaft, speed 25 knots submerged.
For her electric power has she 2 Paxman diesels alternators, 2.700 hp. each.
Armament: 16 Lockheed Trident II D5 ballistic missiles. Four 533mm torpedo tubes, with Spearfish torpedoes.
Diving depth 900 feet.
Crew 14 Officers 121 enlisted.
14 August 1993 commissioned.

From 1992 till 1995 undertook sea trials, and in 1994 she made her first test firing.
Later that year she made her first operational patrol under command of Captain David Russel.
She together with her three sisters is based at Her Majesty Naval Base (HMNB) Clyde at Faslane, Scotland; she is a unit of the First Submarine Squadron.

February 2002 she underwent a two year refit at HMNB Devonport, refit completed in October 2005, and she completed her return to service with the firing of an unarmed Trident missile.
2009 Still in service.

Sierra Leone 2001 5000Le sgMS?, scott?

Source: http://en.wikipedia.org/wiki/HMS_Vanguard_(S28) Some other web-sites.

The eleventh HMS VANGUARD (S28) of the Royal Navy is the lead boat of her class of Trident ballistic missile-armed submarines. The sub is based at HMNB Clyde, Faslane.

VANGUARD was built at Barrow-in-Furness by Vickers Shipbuilding and Engineering Ltd (now BAE Systems Submarine Solutions). She was ordered on 30 May 1986; Laid down: 3 September 1986; Launched: 4 March 1992: Commissioned: 14 August 1993

The submarine's first commanding officer was Captain David Russell.

In February 2002, VANGUARD began a two-year refit at HMNB Devonport. The refit was completed in June 2004 and in October 2005, VANGUARD completed her return to service trials (Demonstration and Shakedown Operations) with the firing of an unarmed Trident missile. During this refit, VANGUARD was illegally boarded by a pair of anti-nuclear protestors.

HMS VANGUARD was on a routine patrol in the Eastern Atlantic Ocean with a crew of 135, and was armed with a maximum of 16 Trident 2 D5 ballistic missiles carrying up to 48 warheads in total. Triomphant was returning from a tour of duty when the incident occurred; it was carrying a crew of 111, and was equipped with 16 M45 ballistic missiles with up to 48 warheads in total.

On the night between 3–4 February 2009, the two submarines collided in the Atlantic Ocean. On 6 February 2009, the French Ministry of Defence reported that Triomphant "collided with an immersed object (probably a container)". The UK Ministry of Defence initially would not comment that the incident took place. On 16 February 2009, the incident was confirmed by First Sea Lord Sir Jonathon Band, in response to a question at an unrelated event. Band said that the collision occurred at low speed, and that there had been no injuries. The French Ministry of Defence also stated that a collision "at a very low speed" had occurred, with no casualties.

Both vessels were damaged. VANGUARD received damage to the outer casing in the area of the missile compartment on the starboard side. Triomphant was initially said to have received damage to the active sonar dome under her bow, indicating that Triomphant ran into VANGUARD from above and amidship, but was later reported as having received impacts to three parts of her structure, with her conning tower and the starboard sail plane attached to the conning tower visibly deformed by the incident. According to the Daily Telegraph, the cost of repairing the damage to both boats was expected to amount to up to £50 million. Both vessels returned to home bases under their own power, VANGUARD to HMNB Clyde in the Firth of Clyde, on 14 February 2009 and Triomphant to Île Longue in Brittany, escorted by a frigate as a normal procedure" although it is unclear whether this was an unplanned return following the incident.

Class and type: VANGUARD-class submarine
Displacement: Dived: 15,680 long tons (17,560 short tons)
Length: 149.9 m (491 ft 10 in)
Beam: 12.8 m (42 ft 0 in)
Draught: 12 m (39 ft 4 in)
Propulsion: 1 × Rolls-Royce PWR2 nuclear reactor
2 × GEC turbines
1 × shaft pump jet
27,500 hp (20.5 MW)
2 × auxiliary retractable propulsion motors
2 × W H Allen turbo generators
6 MW
2 × Paxman diesel alternators
2 × 2,700 hp (4 MW)
Speed: Dived: 25 knots (46 km/h; 29 mph)
Range: Essentially unlimited distance; 20 years
Complement: 14 officers
121 enlisted
Sensors and
processing systems: BAE Systems SMCS
Thales Underwater Systems Type 2054 composite sonar suite comprising:
Type 2046 towed array sonar
Type 2043 hull-mounted active and passive search sonar
Type 2082 passive intercept and ranging sonar
1 × Kelvin Hughes Type 1007 I band navigation radar
1 × Pilkington Optronics CK51 search periscope
1 × Pilkington Optronics CH91 attack periscope
Electronic warfare
and decoys: Thales UPM intercept ESM
2 × Mk10 launchers for launching Type 2066 and Type 2071 decoys
Armament: 4 × 21 in (533 mm) torpedo tubes for Spearfish torpedoes
16 × ballistic missile tubes for 16 x Lockheed Trident D5 SLBMs carrying up to 128 warheads.

2021 still in service.

Great Britain 2001 2nd. Sg2202, scott?
British India Ocean Territory 2001 34p sg?, scott?

Sources: Debbie Corner, Keeper of Photographs/Temporary Exhibitions Coordinator, RN Submarine Museum, Gosport. Wikipedia.

.Peter Crichton