Yarrow Later M-class destroyer

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Class overview
Operators	Royal Navy
Preceded by	Yarrow M class
Built	1915–1917
In commission	1916–1938
Completed	7
Lost	3
General characteristics
Type	Destroyer
Displacement	897 long tons (911 t) light 930 long tons (945 t) normal
Length	273 ft 6 in (83.36 m)
Beam	25 ft 7.5 in (7.81 m)
Draught	10 ft 6 in (3.20 m)
Propulsion	3 × Yarrow-type boilers Parsons direct-drive steam turbines 27,000 hp (20,134 kW) 2 shafts 200–256 tons oil
Speed	36 knots (41 mph; 67 km/h)
Complement	82
Armament	3 × QF 4-inch (101.6 mm) Mark IV guns, mounting P Mk.IX 1 × single QF 2 pdr "pom-pom" Mk.II 2 × twin 21 in (533 mm) torpedo tubes

The Yarrow Later M class were a class of seven destroyers built for the Royal Navy that saw service during World War I. They were based on the preceding and successful Yarrow M class with minor alterations; notably reduced beam to compensate for increased displacement and a sloping stern. They were sometimes described as the Yarrow R class of destroyers.