HMS Regulus (N88)

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History
United Kingdom
Name: HMS Regulus
Builder: Vickers Armstrong, Barrow-in-Furness
Laid down: 17 July 1929[1]
Launched: 11 June 1930
Commissioned: 7 December 1930
Fate: Sunk 6 December 1940 near Taranto, probably mined
General characteristics
Class & type: Rainbow-class submarine
Displacement:
  • 1,763 long tons (1,791 t) surfaced
  • 2,030 long tons (2,060 t) submerged
Length: 287 ft (87 m)
Beam: 30 ft (9.1 m)
Draught: 16 ft (4.9 m)
Propulsion:
  • Diesel-electric
  • 2 × Admiralty diesel engines, 4,640 hp
  • 2 × electric motors, 1,635 hp
  • 2 shafts
Speed:
  • 17.5 knots (20.1 mph; 32.4 km/h) surfaced
  • 8.6 kn (9.9 mph; 15.9 km/h) submerged
Complement: 53
Armament:

HMS Regulus (N88) was a Rainbow-class submarine built for the Royal Navy during the 1930s.

Design and description[edit]

The Rainbow-class submarines were designed as improved versions of the Parthian class and were intended for long-range operations in the Far East. The submarines had a length of 287 feet 2 inches (87.5 m) overall, a beam of 29 feet 10 inches (9.1 m) and a mean draft of 13 feet 10 inches (4.2 m). They displaced 1,772 long tons (1,800 t) on the surface and 2,030 long tons (2,060 t) submerged. The Rainbow-class submarines had a crew of 56 officers and ratings. They had a diving depth of 300 feet (91.4 m).[2]

For surface running, the boats were powered by two 2,200-brake-horsepower (1,641 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 660-horsepower (492 kW) electric motor. They could reach 17.5 knots (32.4 km/h; 20.1 mph) on the surface and 9 knots (17 km/h; 10 mph) underwater. On the surface, the boats had a range of 7,050 nautical miles (13,060 km; 8,110 mi) at 9.2 knots (17.0 km/h; 10.6 mph) and 62 nmi (115 km; 71 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged.[2]

The boats were armed with six 21-inch torpedo tubes in the bow and two more in the stern. They carried six reload torpedoes for a grand total of fourteen torpedoes. They were also armed with a QF 4.7-inch (120 mm) Mark IX deck gun.[3]

Construction and career[edit]

Regulus was laid down by Vickers-Armstrong at Barrow-in-Furness and launched in 1930. Before Second World War she was stationed with Submarine Flotilla #4 on the China station, based out of Hong Kong.

Regulus was lost with her entire crew on 6 December 1940 whilst on patrol off Taranto, Italy. In all probability she hit a mine.

Notes[edit]

  1. ^ Helgason, Guðmundur. "HMS Regulus (i) (N 88)". Uboat.net. 
  2. ^ a b Bagnasco, pp. 106–07
  3. ^ Chesneau, p. 49

References[edit]