HMS Ambush (P418)
HMS Ambush (P418/S68)
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| History | |
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| Ordered: | Very late in World War II |
| Builder: | Vickers Armstrong, Barrow-in-Furness |
| Laid down: | 17 May 1945 |
| Launched: | 24 September 1945 |
| Commissioned: | 22 July 1947 |
| Decommissioned: | November 1967 |
| Fate: | Sold to be broken up for scrap on 24 June 1971. Scrapped at Thos W Ward Inverkeithing in July 1971. |
| General characteristics | |
| Displacement: | 1,360/1,590 tons (surface/submerged) |
| Length: | 293 ft 6 in (89.46 m) |
| Beam: | 22 ft 4 in (6.81 m) |
| Draught: | 18 ft 1 in (5.51 m) |
| Propulsion: | 2 × 2,150 hp Admiralty ML 8-cylinder diesel engine, 2 × 625 hp electric motors for submergence driving two shafts |
| Speed: | 18.5/8 knots (surface/submerged) |
| Range: |
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| Test depth: | 350 ft (110 m) |
| Complement: | 5 officers 55 enlisted |
| Armament: |
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HMS Ambush (P418), was an Amphion-class submarine of the Royal Navy, built by Vickers Armstrong and launched 24 September 1945.
In 1948 she took part in trials of the Schnorkel. In 1951 she heard and decoded a distress message from HMS Affray, which was sunk with the ultimate loss of all 75 hands. In 1953 she took part in the Fleet Review to celebrate the Coronation of Queen Elizabeth II.
Like all Amphion-class submarines, Ambush had a displacement of 1,360 tonnes (1,500 short tons) when at the surface and 1,590 tonnes (1,750 short tons) while submerged. It had a total length of 293 feet 6 inches (89.46 m), a beam length of 22 feet 4 inches (6.81 m), and a draught length of 18 feet 1 inch (5.51 m). The submarine was powered by two Admiralty ML eight-cylinder diesel engines generating a power of 2,150 horsepower (1,600 kW) each. It also contained four electric motors each producing 625 horsepower (466 kW) that drove two shafts. It could carry a maximum of 219 tonnes (241 short tons) of diesel, although it usually carried between 159 and 165 tonnes (175 and 182 short tons).
The submarine had a maximum surface speed of 18.5 knots (34.3 km/h; 21.3 mph) and a submerged speed of 8 knots (15 km/h; 9.2 mph). When submerged, it could operate at 3 knots (5.6 km/h; 3.5 mph) for 90 nautical miles (170 km; 100 mi) or at 8 knots (15 km/h; 9.2 mph) for 16 nautical miles (30 km; 18 mi). When surfaced, it was able to travel 15,200 nautical miles (28,200 km; 17,500 mi) at 10 knots (19 km/h; 12 mph) or 10,500 nautical miles (19,400 km; 12,100 mi) at 11 knots (20 km/h; 13 mph).Ambush was fitted with ten 21 inches (530 mm) torpedo tubes, one QF 4 inch naval gun Mk XXIII, one Oerlikon 20 mm cannon, and a .303 British Vickers machine gun. Its torpedo tubes were fitted to the bow and stern, and it could carry twenty torpedoes. Its complement was sixty-one crew members.
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