Laforey-class destroyer (1913)

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HMS Loyal, October 1914
Class overview
Name	Laforey- or L-class destroyer
Operators	Royal Navy
Preceded by	Acasta class
Succeeded by	Admiralty M class
Completed	22
Lost	3
General characteristics
Type	Destroyer
Displacement	965–1,010 long tons (980–1,026 t)
Length	268 ft 10 in (81.94 m) o/a
Beam	27 ft 8 in (8.43 m)
Draught	10 ft 6 in (3.20 m)
Installed power	24,500 shp (18,300 kW) 3–4 × water-tube boilers
Propulsion	2 shafts; 2 steam turbines
Speed	29 knots (54 km/h; 33 mph)
Range	1,720 nmi (3,190 km; 1,980 mi) at 15 knots (28 km/h; 17 mph)
Complement	74
Armament	3 × QF 4-inch (102 mm) Mark IV guns 2 × QF 1.5-pounder (37 mm) or QF 2-pounder (40 mm) "pom-pom" anti-aircraft guns 2 × twin 21-inch (533 mm) torpedo tubes

The Laforey class (redesignated in October 1913 as the L class) was a class of 22 torpedo boat destroyers of the Royal Navy, twenty of which were built under the Naval Programme of 1912–13 and a further two under the 2nd War Emergency Programme of 1914. As such they were the penultimate pre-war British destroyer design (the M class built under the Naval Programme of 1913–14 being the last design). All served during World War I during which three were lost; the survivors were all scrapped in 1921-23.