SD Powerful

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A223 Powerful p1, Portsmouth, UK.jpg
RMAS Powerful at HMNB Portsmouth, 2006
United Kingdom
Name: RMAS Powerful (A223)
Builder: Richard Dunston
Launched: 1985
In service: 1985
Out of service: 2008
Homeport: HMNB Portsmouth
Status: Transferred to Serco Marine Services
Civil Ensign of the United Kingdom.svgUnited Kingdom
Name: SD Powerful
In service: 2008
Status: Active
General characteristics
Tonnage: 384 GT[1]
Length: 38.8 m (127 ft 4 in)[1]
Beam: 9.42 m (30 ft 11 in)[1]
Draught: 4 m (13 ft 1 in)[1]
Propulsion: Two diesels, two shafts, 2,640 bhp
Speed: 12 kn (22 km/h; 14 mph)[1]
Complement: 5

SD Powerful is a Twin Tractor Unit Tug operated by Serco Marine Services in support of the United Kingdom's Naval Service. The ship was formerly operated by the Royal Maritime Auxiliary Service until its disbandment in March 2008.[1]

See also[edit]


  1. ^ a b c d e f Bush, Steve (2014). British Warships and Auxiliaries. Maritime Books. p. 69. ISBN 1904459552.