Dale-class tanker

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The Dale class consisted of three tankers chartered for service for the Royal Fleet Auxiliary in 1967. They served for a number of years supporting Royal Navy and allied fleet operations, during which one, Ennerdale, was lost. The remaining two were returned to their original owners in the mid-1970s.

Class overview
NameDale class
Builders
OperatorsRFA Ensign Royal Fleet Auxiliary
Preceded byLeaf class
Succeeded byRover class
In service1967–1977
Completed3
Retired3
General characteristics
TypeMobile reserve tanker
Displacement
  • Derwentdale: 88,555 long tons (89,976 t)
  • Dewdale: 67,000 long tons (68,075 t)
  • Ennerdale: 62,000 long tons (62,995 t)
Length
  • Derwentdale: 799 ft (244 m)
  • Dewdale: 774 ft (236 m)
  • Ennerdale: 710 ft (220 m)
Beam
  • Derwentdale: 117 ft 8 in (35.86 m)
  • Dewdale: 107 ft (33 m)
  • Ennerdale: 98 ft (30 m)
Draught
  • Derwentdale: 42 ft 3 in (12.88 m)
  • Dewdale: 41 ft (12 m)
  • Ennerdale: 40 ft (12 m)
PropulsionBurmeister and Wain Diesels
Speed
  • Derwentdale: 15.5 knots (17.8 mph; 28.7 km/h)
  • Dewdale: 15 knots (17 mph; 28 km/h)
Complement
  • Derwentdale: 56
  • Dewdale and Ennerdale: 51

Overview edit

Three large modern tankers, built to varying designs in the mid-1960s, were charted by the Royal Fleet Auxiliary to support naval operations east of the Suez Canal, in the waters of the Indian Ocean and the Far East.[1] They were given traditional RFA names, reusing three names that had been used for the Second World War-era Dale-class oilers. They were not fitted with equipment to allow them to replenish ships at sea, and were classified instead as 'Mobile Reserve Tankers'.[1]

The smallest, RFA Ennerdale was also the shortest lived. She hit a coral reef and sank off Port Victoria on 1 June 1970.[1] The wreck was subsequently destroyed with explosives fired from Wessex helicopters to prevent an oil spillage from threatening the Seychelles.[1] RFA Derwentdale was returned to her original owners in 1974, but RFA Dewdale remained in service until 1977.[2] During this time Dewdale saw service with the Aden task force during the British withdrawal in 1967, and was then active then on the Beira Patrols.[2] She was the last to leave service with the RFA, being returned in 1977 and commencing service under her old name of Edenfield.[2]

Ships edit

 Name   Pennant   Builder   Previous name   Fate 
Derwentdale A221 Hitachi Halcyon Breeze Returned in 1974
Dewdale A129 Harland & Wolff Edenfield Decommissioned in September 1977
Ennerdale A213 Kieler Howaldstwerke Naess Scotsman Wrecked on 1 June 1970

Notes edit

  1. ^ a b c d Olver. "Dale Group Mobile Reserve Tankers (AOM)". Archived from the original on 5 June 2011. Retrieved 8 March 2009.
  2. ^ a b c "RFA Dewdale". Royal Fleet Auxiliary Historical Society. Retrieved 8 March 2009.

References edit