HMS Onyx (J221)

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HMS Onyx
History
United Kingdom
NameOnyx
NamesakeOnyx
Ordered15 November 1940
BuilderHarland & Wolff, Belfast
Laid down24 November 1941
Launched27 October 1942
Commissioned26 March 1943
IdentificationPennant number: J221
FateScrapped, 1967
General characteristics
Class and typeAlgerine-class minesweeper
Displacement
  • 850 long tons (864 t) (standard)
  • 1,125 long tons (1,143 t) (deep)
Length225 ft (69 m) o/a
Beam35 ft 6 in (10.82 m)
Draught11 ft 6 in (3.51 m)
Installed power
  • 2 ×
    Admiralty 3-drum boilers
  • 2,000 ihp (1,500 kW)
Propulsion
Speed16.5 knots (30.6 km/h; 19.0 mph)
Range5,000 nmi (9,300 km; 5,800 mi) at 10 knots (19 km/h; 12 mph)
Complement85
Armament

HMS Onyx (J221) was a

turbine engine-powered Algerine-class minesweeper
during the Second World War.

Design and description

The turbine-powered ships displaced 850 long tons (860 t) at

deep load. The ships measured 225 feet (68.6 m) long overall with a beam of 35 feet 6 inches (10.8 m). The turbine group had a draught of 11 feet (3.4 m). The ships' complement consisted of 85 officers and ratings.[1]

The ships had two

Admiralty three-drum boilers. The engines produced a total of 2,000 indicated horsepower (1,500 kW) and gave a maximum speed of 16.5 knots (30.6 km/h; 19.0 mph). They carried a maximum of 660 long tons (671 t) of fuel oil that gave them a range of 5,000 nautical miles (9,300 km; 5,800 mi) at 10 knots (19 km/h; 12 mph).[1]

The Algerine class was armed with a

Bofors 40 mm mounts began replacing the twin 20 mm mounts on a one for one basis. All of the ships were fitted for four throwers and two rails for depth charges.[1]

Construction and career

The ship was ordered on 15 November 1940 at the

commissioned on 26 March 1943.[3]

On 5 April 1967, she was put on the disposal list and sold to BISCO for scrap.

References

  1. ^ a b c Lenton, p. 261
  2. ^ Chesneau, p. 65
  3. ^ "HMS Niger (iii) (J 442) of the Royal Navy - British Minesweeper of the Algerine class - Allied Warships of WWII - uboat.net". uboat.net. Retrieved 10 December 2021.

Bibliography

External links