HMS Hydra (A144)

	KRI Dewa Kembar (932) as of August 2019
History
United Kingdom
Name	HMS Hydra
Builder	Yarrow Shipbuilders, Scotstoun
Yard number	2258
Laid down	14 May 1964
Launched	14 July 1965
Commissioned	4 May 1966
Decommissioned	1986
Identification	Pennant number: A144; IMO number: 6519340;
Motto	Ut Herculis Perseverantia; ("Like Hercules Persevere");
Fate	Sold to the Indonesian Navy, 1986
Indonesia
Name	KRI Dewa Kembar
Namesake	Aśvins
Acquired	1986
Identification	Pennant number: 932; IMO number: 6519340;
Status	in active service, as of 2019
General characteristics
Class and type	Hecla-class survey vessel
Displacement	2,000 tons standard; 2,945 tons full load;
Length	79 m (259 ft 2 in)
Beam	15.4 m (50 ft 6 in)
Draught	4.9 m (16 ft 1 in)
Propulsion	Diesel-electric drive; 3 × Paxman 12 YJCZ diesels producing 2,434 hp; 1 electric motor producing 2,000 shp (1,500 kW), driving a single shaft; Bow thruster;
Speed	11 kn (20 km/h) cruise; 14 kn (26 km/h) maximum;
Range	12,000 nmi (22,000 km) at 11 kn (20 km/h)
Boats & landing ; craft carried	2 × 35 ft (11 m) surveying motor boats
Complement	12 officers and 116 men
Sensors and ; processing systems	Kelvin Hughes Type 1006 radar; Hydroplot Satellite navigation system; computerised data logging; gravimeter; magnetometers; sonars; echo-sounders;
Armament	2 × 2M-1 Twin DShK 1938/46 (in Indonesian navy service)
Aircraft carried	1 × Westland Wasp helicopter
Aviation facilities	A hangar for light helicopter
Service record
Operations:	Falklands War

HMS Hydra (pennant number A144) was a Royal Navy deep ocean hydrographic survey vessel, the third of the original three of the Hecla class. The ship was laid down as yard number 2258 on 14 May 1964 at Yarrow Shipbuilders, at Scotstoun on the River Clyde and launched on 14 July 1965 by Mary Lythall, wife of the then Chief Scientist (Royal Navy), Basil W Lythall CB (1919–2001). She was completed and first commissioned on 4 May 1966 and, as the replacement for the survey ship HMS Owen, her commanding officer and many of her ship's company formed the first commission of HMS Hydra. She was decommissioned and sold to the Indonesian Navy in 1986 and renamed KRI Dewa Kembar (Pennant Number 932); she was still in service in 2019.

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