Blackwood-class frigate

	HMS Exmouth (1972) – following conversion to gas turbine propulsion
Class overview
Name	Type 14 or Blackwood class
Builders	Swan Hunter, Wallsend; Yarrow Shipbuilders, Scotstoun; John I. Thornycroft & Co., Woolston; Alexander Stephen and Sons, Govan; J. Samuel White, Cowes;
Operators	Royal Navy; Indian Navy; Indian Coast Guard;
In service	1955 (RN) – 1988 (ICG)
Completed	15
Lost	1 (+1 as target)
General characteristics
Type	Anti-submarine frigate
Displacement	1,456 long tons (1,479 t) full load
Length	310 ft (94.5 m)
Beam	33 ft (10.1 m)
Draught	15 ft (4.6 m)
Installed power	2 × Babcock & Wilcox boilers; 15,000 shp (11 MW);
Propulsion	1 shaft; 1 steam turbine set; Exmouth, from 1966: COGOG, 1 × Rolls-Royce Olympus boost and 2 × Rolls-Royce Proteus cruise gas turbines.;
Speed	27 knots (50 km/h; 31 mph)
Range	5,200 nmi (9,600 km; 6,000 mi) at 12 knots (22 km/h; 14 mph)
Complement	112
Sensors and ; processing systems	Radar Type 974 navigation; Sonar Type 174 search; Sonar Type 162 target classification; Sonar Type 170 targeting;
Armament	3 × 40 mm Bofors gun Mark 7 (quarterdeck mount later removed); 2 × Limbo Mark 10 anti-submarine mortars; 2 × twin 21-inch (533 mm) deck-mounted tubes for anti-submarine homing torpedoes (Blackwood, Exmouth, Malcolm and Palliser only, later removed);

The Type 14 Blackwood class were a ship class of minimal "second-rate" anti-submarine warfare frigates. Built for the Royal Navy during the 1950s at a time of increasing threat from the Soviet Union's submarine fleet, they served until the late 1970s. Twelve ships of this class served with the Royal Navy and a further three were built for the Indian Navy.^[1]^[2]

^ ^a ^b Marriott,Leo, 'Royal Navy Frigates Since 1945', Second Edition, ISBN 0-7110-1915-0, Published by Ian Allan Ltd (Surrey, UK), 1990
^ Purvis,M.K., 'Post War RN Frigate and Guided Missile Destroyer Design 1944–1969', Transactions, Royal Institution of Naval Architects (RINA), 1974

[Marriott-1] Marriott,Leo, 'Royal Navy Frigates Since 1945', Second Edition, ISBN 0-7110-1915-0, Published by Ian Allan Ltd (Surrey, UK), 1990

[1974RINApaper-2] Purvis,M.K., 'Post War RN Frigate and Guided Missile Destroyer Design 1944–1969', Transactions, Royal Institution of Naval Architects (RINA), 1974

[1]

[2]

Class overview
HMS Exmouth (1972) – following conversion to gas turbine propulsion
Name	Type 14 or Blackwood class
Builders	Swan Hunter, Wallsend Yarrow Shipbuilders, Scotstoun John I. Thornycroft & Co., Woolston Alexander Stephen and Sons, Govan J. Samuel White, Cowes
Operators	Royal Navy Indian Navy Indian Coast Guard
In service	1955 (RN) – 1988 (ICG)
Completed	15
Lost	1 (+1 as target)
General characteristics
Type	Anti-submarine frigate
Displacement	1,456 long tons (1,479 t) full load
Length	310 ft (94.5 m)
Beam	33 ft (10.1 m)
Draught	15 ft (4.6 m)
Installed power	2 × Babcock & Wilcox boilers 15,000 shp (11 MW)
Propulsion	1 shaft; 1 steam turbine set Exmouth, from 1966: COGOG, 1 × Rolls-Royce Olympus boost and 2 × Rolls-Royce Proteus cruise gas turbines.^[1]
Speed	27 knots (50 km/h; 31 mph)
Range	5,200 nmi (9,600 km; 6,000 mi) at 12 knots (22 km/h; 14 mph)
Complement	112
Sensors and processing systems	Radar Type 974 navigation Sonar Type 174 search Sonar Type 162 target classification Sonar Type 170 targeting
Armament	3 × 40 mm Bofors gun Mark 7 (quarterdeck mount later removed) 2 × Limbo Mark 10 anti-submarine mortars 2 × twin 21-inch (533 mm) deck-mounted tubes for anti-submarine homing torpedoes (Blackwood, Exmouth, Malcolm and Palliser only, later removed)