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 the Halcyon-class 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.