HMS Halcyon (J42)

History
United Kingdom
Name	Halcyon
Builder	John Brown Shipbuilding & Engineering
Laid down	27 March 1933
Launched	20 December 1933
Commissioned	18 April 1934
Identification	Pennant number: J42
Fate	Sold for scrapping on 19 April 1950
General characteristics
Class and type	Halcyon-class minesweeper
Displacement	815 long tons (828 t) standard 1,370 long tons (1,392 t) full
Length	245 ft 9 in (74.90 m) o/a
Beam	33 ft 6 in (10.21 m)
Draught	8 ft 3 in (2.51 m)
Installed power	1,770 ihp (1,320 kW) 2 × Admiralty 3-drum boilers
Propulsion	2 shafts 2 compound-expansion steam engines
Speed	16.5 knots (30.6 km/h; 19.0 mph)
Range	7,200 nmi (13,300 km; 8,300 mi) at 10 knots (19 km/h; 12 mph)
Complement	157
Armament	2 × single QF 4-inch (100 mm) guns 8 × single .303-inch (7.7 mm) machine guns

HMS Halcyon was the lead ship in her class of minesweepers built for the Royal Navy in the 1930s. The vessel was launched on 20 December 1933 and was used as a convoy escort and during the landing operations during the invasion of Normandy during World War II. The ship was sold for scrapping in 1950.