HMIS Bihar (J247)

HMIS Bihar (J247) was a Bangor-class minesweeper built for the Royal Navy. It transferred to the Royal Indian Navy (RIN) during the Second World War.

History
India
Name: Bihar
Ordered: 14 October 1940
Builder: Garden Reach Shipbuilders & Engineers
Laid down: 7 June 1941
Launched: 7 July 1942
Commissioned: 27 February 1944
Decommissioned: 1949
Fate: Scrapped
General characteristics
Class and type: Bangor-class minesweeper
Displacement:
  • 673 long tons (684 t) standard
  • 860 long tons (874 t) full
Length: 189 ft (58 m) o/a
Beam: 28 ft 6 in (8.69 m)
Draught: 10 ft 6 in (3.20 m)
Installed power:
  • 2,400 ihp (1,800 kW)
  • 2 × Admiralty 3-drum boilers
Propulsion:
Speed: 16 knots (30 km/h; 18 mph)
Range: 2,800 nmi (5,200 km; 3,200 mi) at 10 knots (19 km/h; 12 mph)
Complement: 60
Armament:

Design and description

The Bangor class was designed as a small minesweeper that could be easily built in large numbers by civilian shipyards; as steam turbines were difficult to manufacture, the ships were designed to accept a wide variety of engines. Bihar displaced 673 long tons (684 t) at standard load and 860 long tons (870 t) at deep load. The ship had an overall length of 189 feet (57.6 m), a beam of 28 feet 6 inches (8.7 m) and a draught of 10 feet 6 inches (3.2 m).[1] The ship's complement consisted of 60 officers and ratings.[2]

She was powered by two vertical triple-expansion steam engines (VTE), each driving one shaft, using steam provided by two Admiralty three-drum boilers. The engines produced a total of 2,400 shaft horsepower (1,800 kW) and gave a maximum speed of 16 knots (30 km/h; 18 mph). The ship carried a maximum of 160 long tons (163 t) of fuel oil that gave her a range of 2,800 nautical miles (5,200 km; 3,200 mi) at 10 knots (19 km/h; 12 mph).[3]

The VTE-powered Bangors were armed with a QF 12-pounder (7.62 cm) anti-aircraft gun and a single QF 2-pounder (4 cm) AA gun or a quadruple mount for the Vickers .50 machine gun. In some ships the 2-pounder was replaced a single or twin 20 mm Oerlikon AA gun, while most ships were fitted with four additional single Oerlikon mounts over the course of the war.[3] For escort work, their minesweeping gear could be exchanged for around 40 depth charges.[2]

Construction and career

HMIS Bihar was ordered in 1940 and built at Garden Reach Shipbuilders & Engineers in Kolkata, India. She was commissioned into the RIN in 1944. Bihar was a part of the Eastern Fleet, and escorted numerous convoys between Africa, British India and Australia in 1944-45.[4][5]

On 15 July 1944, the British merchant ship Tanda was torpedoed and sunk by German submarine U-181 in the Arabian Sea at position 13°22′N 74°09′E northwest of Mangalore. HMIS Bihar with HMS Monkshood rescued 197 surviving crew of the Tanda. She was scrapped in 1949.

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References
  1. Lenton, pp. 253–54
  2. Chesneau, p. 64
  3. Lenton, p. 254
  4. "East Indies Fleet War Diary 1944". Naval-history.net. 30 December 1944. Retrieved 25 August 2015.
  5. "East Indies Fleet War Diary 1945". Naval-history.net. Retrieved 25 August 2015.

Bibliography


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