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Llewellyn-class minesweeper

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Class overview
NameLlewellyn class
Operators Royal Canadian Navy
General characteristics
TypeMinesweeper
Displacement228 long tons (232 t)
Length
  • 105 ft 0 in (32 m) pp
  • 119 ft 4 in (36.4 m) oa
Beam22 ft 0 in (6.7 m)
Draught8 ft 8 in (2.6 m)
Propulsion
Speed12 knots (22 km/h; 14 mph)
Complement20
Armament2 × twin 0.5 in (12.70 mm) machine guns
NotesEquipped with "Double L" magnetic minesweeping gear

The Llewellyn-class minesweepers were a series of ten coastal minesweepers constructed for the Royal Canadian Navy during the Second World War. Based on the Admiralty type Template:Sclass2-, the Llewellyn class were constructed of wood and used for the removal of magnetic influence mines. Two were built in Quebec, with the eight constructed on the Western Coast of Canada. Mostly used as guard ships during the war, only three of the ten remained in Royal Canadian Navy service following the war, with the last two being discarded in 1959.

Description

Based on the Admiralty type Template:Sclass2-s, the Llewellyn class were built with wooden hulls for deployment against magnetic influence mines that would detect a steel hull passing nearby and detonate. The minesweepers had a standard displacement of 228 long tons (232 t).[1] They were 119 ft 4 in (36.4 m) long overall and 105 ft 0 in (32 m) between perpendiculars with a beam of 22 ft 0 in (6.7 m) and a draught of 8 ft 8 in (2.6 m).[2][3] The Llewellyn class were powered by a diesel engine driving one propeller shaft, rated at 500 brake horsepower (373 kW).[2] This gave the minesweepers a maximum speed of 12 knots (22 km/h; 14 mph).[3]

The Llewellyn class were armed with four 0.5 in (12.7 mm) machine guns placed in two twin mounts.[3] At some point, their armament was changed to one 0.5-inch machine gun placed amidships and twin .303-inch (7.7 mm) machine guns on the bridge wings.[1] The minesweepers were equipped with the "Double L" magnetic minesweeping gear and had a complement of 23 composed of 3 officers and 20 crew.[3]

Ships in class

Service history

Citations

  1. ^ a b Macpherson 1997, p. 102.
  2. ^ a b Lenton & Colledge 1968, p. 534.
  3. ^ a b c d Macpherson & Barrie 2002, p. 201.

Sources

  • Lenton, H. T.; Colledge, J. J. (1968) [1964]. British & Dominion Warships of World War II. New York: Doubleday and Company. ISBN 0-71100-403-X. OCLC 1366368. {{cite book}}: Invalid |ref=harv (help); Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
  • Macpherson, Ken (1997). Minesweepers of the Royal Canadian Navy 1938–45. St. Catharines, Ontario: Vanwell Publishing Limited. ISBN 0-920277-55-1. {{cite book}}: Invalid |ref=harv (help)
  • Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1. {{cite book}}: Invalid |ref=harv (help); Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)