U and V-class destroyer

HMS Undaunted in 1944
Class overview
Name:	U and V class
Builders:	John Brown & Company Cammell Laird Fairfield Shipbuilding and Engineering Company J. Samuel White Swan Hunter John I. Thornycroft and Company Vickers-Armstrongs
Operators:	Royal Navy  Royal Canadian Navy
Preceded by:	S and T class
Succeeded by:	W and Z class
Built:	1941–1944
In commission:	1943–1982
Completed:	16
Lost:	1
General characteristics
Type:	Destroyer
Displacement:	1,777 long tons (1,806 t) standard 2,058 long tons (2,091 t) full load
Length:	363 ft (111 m)
Beam:	35 ft 8 in (10.87 m)
Draught:	10 ft (3.0 m)
Propulsion:	2 × Admiralty 3-drum water-tube boilers Geared steam turbines, 40,000 shp (29,828 kW) 2 shafts
Speed:	36.75 knots (42.3 mph; 68.1 km/h)
Range:	4,860 nmi (9,000 km) at 20 kn (37 km/h)
Complement:	180 (225 in flotilla leader)
Armament:	Original configuration : 4 × QF 4.7-inch (120-mm) Mk IX guns in single mountings CP Mk.XXII 2 × QF 40 mm Bofors guns in twin mount Mk.IV 6 × QF 20 mm Oerlikon guns; 2 × twin mounts Mk.V, 2 × single mounts Mk.III 2 × quadruple tubes for 21-inch (533 mm) torpedoes Mk.IX

The U and V class was a class of sixteen destroyers of the Royal Navy launched in 1942–1943. They were constructed in two flotillas, each with names beginning with "U-" or "V-" (although there was a return to the pre-war practice of naming the designated flotilla leader after a famous naval figure from history to honour the lost ships Grenville and Hardy). The flotillas constituted the 7th Emergency Flotilla and 8th Emergency Flotilla, built under the War Emergency Programme. These ships used the Fuze Keeping Clock HA Fire Control Computer.

Four ships, Verulam, Venus, Vigilant and Virago, formed part of the 26th Destroyer Flotilla that ambushed and sank the Japanese cruiser Haguro, off Sumatra.

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