HMS Duncan (D37)

	HMS Duncan in 2016
History
United Kingdom
Name	HMS Duncan
Namesake	Adam Duncan, Viscount Duncan of Camperdown
Ordered	December 2000
Builder	BAE Systems Surface Ships
Laid down	26 January 2007
Launched	11 October 2010
Sponsored by	Mrs Marie Ibbotson
Commissioned	26 September 2013
Identification	Deck code: DU; Pennant number: D37; Call sign GMIC; IMO number: 4907880; MMSI number: 235053411;
Motto	Secundis dubusque rectus; ("Upright in prosperity and peril");
Status	In active service
Badge
General characteristics
Class and type	Type 45 guided missile destroyer
Displacement	8,000 to 8,500 t (8,400 long tons; 9,400 short tons)
Length	152.4 m (500 ft 0 in)
Beam	21.2 m (69 ft 7 in)
Draught	7.4 m (24 ft 3 in)
Installed power	2 × Rolls-Royce WR-21 gas turbines, 21.5 MW (28,800 shp) each; 2 × Wärtsilä 12V200 diesel generators, 2 MW (2,700 shp) each;
Propulsion	2 shafts integrated electric propulsion with; 2 × Converteam electric motors, 20 MW (27,000 shp) each;
Speed	In excess of 30 kn (56 km/h; 35 mph)
Range	In excess of 7,000 nautical miles (13,000 km) at 18 kn (33 km/h)
Complement	191 (accommodation for up to 235)
Sensors and ; processing systems	SAMPSON multi-function air tracking radar (Type 1045); S1850M 3-D air surveillance radar (Type 1046); Raytheon Integrated Bridge and Navigation System; 2 × Raytheon AHRS INS ; (MINS 2); 2 × Raytheon I-band Radar ; (Type 1047); 1 × Raytheon E/F-band Radar ; (Type 1048); Ultra Electronics Series 2500 Electro-Optical Gun Control System (EOGCS); Ultra Electronics SML Technologies radar tracking system; Ultra Electronics/EDO MFS-7000 sonar;
Electronic warfare ; & decoys	UAT Mod 2.0 (2.1 planned); AN/SSQ-130 Ship Signal Exploitation Equipment (SSEE) Increment F cryptologic exploitation system; Seagnat; Naval Decoy IDS300; Surface Ship Torpedo Defence;
Armament	Anti-air missiles:; PAAMS air-defence system; 48 × Sylver Vertical Launching System A50 for:; Aster 15 missiles (range 1.7–30 km); Aster 30 missiles (range 3–120 km), to be upgraded with a ballistic missile defence capability, called Sea Viper Evolution.; [24 × cell Sea Ceptor silos to be fitted from 2026 for:; 24 × surface-to-air missiles that will replace the Aster 15 missiles to allow all 48× Sylver Vertical Launching Systems to be used for Aster 30.]; Anti-ship missiles:; Up to 8 × Harpoon missile (intermittently deployed since 2022; to be replaced with Naval Strike Missile from 2024); Guns:; 1 × 4.5 inch Mark 8 naval gun; 2 × DS30B Mk 1 30 mm guns; 2 × 20 mm Phalanx CIWS; 2 × 7.62 mm Miniguns (replaced by Browning .50 caliber heavy machine guns as of 2023); 6 × 7.62 mm general purpose machine guns;
Aircraft carried	1–2 × Lynx Wildcat, armed with:; Martlet anti ship missiles, or; Sea Venom anti-ship missiles (projected full operating capability from 2026) or; 2 × antisubmarine torpedoes; or; 1 × Westland Merlin, armed with:; 4 × anti-submarine torpedoes;
Aviation facilities	Large flight deck; Enclosed hangar;

HMS Duncan is the sixth and last of the Type 45 or Daring-class air-defence destroyers built for the Royal Navy and launched in 2010. Duncan is named after Adam Duncan, 1st Viscount Duncan (1 July 1731 – 4 August 1804), who defeated the Dutch fleet at the Battle of Camperdown on 11 October 1797. The destroyer has served in the Mediterranean, Black, and Caribbean Seas, and in 2019 was deployed to the Persian Gulf in response to increased tensions with Iran in the region.

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