HMS Dumbarton Castle (P265)

HMS Dumbarton Castle (P265) was an offshore patrol vessel of the British Royal Navy. Her main role was the protection of the offshore assets of the United Kingdom, including oil and gas installations and fisheries out to the 200 mile (370 km) limit.

HMS Dumbarton Castle entering Portsmouth Harbour prior to decommissioning
United Kingdom
Name: HMS Dumbarton Castle
Operator: Royal Navy
Ordered: 8 August 1980[1]
Builder: Hall, Russell & Company
Laid down: 25 June 1980[1]
Launched: 3 June 1981[1]
Commissioned: 12 March 1982[1]
Decommissioned: 2008
Identification: IMO number: 7920015
Fate: Sold to Bangladesh
Notes: Refitted by A&P Group Tyne facility in 2010
General characteristics [1]
Class and type: Castle class patrol vessel
  • 1,350 long tons (1,370 t) standard,
  • 1,550 long tons (1,570 t) full load
  • 81.0 m (265 ft 9 in) overall,
  • 75.0 m (246 ft 1 in)
Beam: 11.5 m (37 ft 9 in)
Draught: 3.42 m (11 ft 3 in)
Installed power: 5,640 bhp (4,210 kW)
Propulsion: 2 × Ruston 12RK 320DM , 2 shafts
Speed: 20 kn (37 km/h; 23 mph)
Range: 19,000 nmi (35,000 km; 22,000 mi) at 12 kn (22 km/h; 14 mph)
Boats & landing
craft carried:
2× Avon Searaider dinghies
Complement: 6 officers and 39 enlisted (+ accommodation for 25 Royal Marines)
Sensors and
processing systems:
  • Kelvin Hughes Type 1006 navigation radar
  • Plessey Type 994 air/sea search radar
Electronic warfare
& decoys:
  • UAN(1) radar warning,
  • DLE rocket decay system
  • Oerlikon / BMARC 30 mm L/75 KCB gun on single Laurence Scott DS-30B mount
  • 4 × L7 General Purpose Machine Guns
  • 4 × C-704 ASHM (in Bangladesh service)
  • To be re-armed with 8x C-802A AShM, 1 x 76mm gun (automatic), 2 x Oerlikon 20 mm auto cannons, 2 x DC racks & launcher and 1 x Z-9C ASW helicopter.
Aircraft carried: Flight deck can support up to Westland Sea King-size helicopter

She spent much of her time deployed in the South Atlantic as guard ship, patrolling around the Falkland Islands and South Georgia, alternating with her sister HMS Leeds Castle. Her long association with the Falkland Islands resulted in the ship's company being given permission to add her name to the roll of honour written in white rocks on the hillside opposite Stanley in 2007.

Dumbarton Castle was replaced by a River class-based vessel, HMS Clyde, in early 2008.

Both Dumbarton Castle and her sister were sold to Bangladesh in April 2010. Dumbarton Castle left Portsmouth on 21 May 2010 towed by the tug Multratug 7, for A&P Group facility in Newcastle upon Tyne for a major regeneration project with her sister ship HMS Leeds Castle. The project was completed in December 2010.

In March 2011, Leeds Castle and Dumbarton Castle were recommissioned as the Dhaleshwari and Bijoy of the Bangladesh Navy respectively.[2]


  • Baker, A.D. The Naval Institute Guide to Combat Fleets of the World 1998–1999. Annapolis, Maryland, USA: Naval Institute Press, 1998. ISBN 1-55750-111-4.

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