Thornycroft M-class destroyer

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HMS Patrician
Class overview
Name	Thornycroft M class
Builders	Thornycroft
Operators	Royal Navy  Royal Canadian Navy
Built	1913–1916
In commission	1914–1929
Completed	6
General characteristics
Type	Destroyer
Displacement	985 – 1,070 tons
Length	274 ft (83.5 m) o/a
Beam	27 ft 9 in (8.46 m) (Meteor & Mastiff) 27 ft 3 in (8.31 m) (Patrician, Patriot, Rapid & Ready)
Draught	10 ft 6 in (3.20 m)
Propulsion	Parsons (Meteor & Mastiff) or Brown-Curtis (Patrician, Patriot, Rapid & Ready) steam turbines 26,500 shp (19,800 kW) 2 shafts
Speed	35 knots (65 km/h; 40 mph)
Range	255 tons of oil
Complement	78
Armament	3 × QF 4-inch (102 mm) Mark IV guns, mounting P Mk.IX 1 × single QF 2-pounder "pom-pom" Mk.II 2 × twin 21 in (533 mm) torpedo tubes

The Thornycroft M or Mastiff class were a class of six British destroyers completed for the Royal Navy during 1914–16 for World War I service. They were quite different from the Admiralty-designed ships of the Admiralty M class, although based on a basic sketch layout provided by the British Admiralty from which J I Thornycroft developed their own design. Like the 'standard' Admiralty M class they had three funnels, but the centre funnel was thicker in the Thornycroft ships. The midships 4-inch (100 mm) gun was shipped between the second and third funnels. Patriot was fitted to carry a kite balloon.