HMS Impulsive (D11)
|Builder:||J. Samuel White and Company, Cowes|
|Laid down:||March 1936|
|Launched:||1 March 1937|
|Commissioned:||29 January 1938|
|Identification:||Pennant number: D11|
|General characteristics (as built)|
|Class and type:||I-class destroyer|
|Length:||323 ft (98.5 m)|
|Beam:||33 ft (10.1 m)|
|Draught:||12 ft 5 in (3.8 m)|
|Propulsion:||2 shafts, 2 geared steam turbines|
|Speed:||35.5 knots (65.7 km/h; 40.9 mph)|
|Range:||5,500 nmi (10,200 km; 6,300 mi) at 15 knots (28 km/h; 17 mph)|
|Victories:||Sank U-457 (1942)|
The I-class ships were improved versions of the preceding H-class. They displaced 1,370 long tons (1,390 t) at standard load and 1,888 long tons (1,918 t) at deep load. The ships had an overall length of 323 feet (98.5 m), a beam of 33 feet (10.1 m) and a draught of 12 feet 6 inches (3.8 m). They were powered by two Parsons geared steam turbines, each driving one propeller shaft, using steam provided by three Admiralty three-drum boilers. The turbines developed a total of 34,000 shaft horsepower (25,000 kW) and gave a maximum speed of 35.5 knots (65.7 km/h; 40.9 mph). Impulsive carried a maximum of 455 long tons (462 t) of fuel oil that gave her a range of 5,500 nautical miles (10,200 km; 6,300 mi) at 15 knots (28 km/h; 17 mph). The ships' complement was 145 officers and ratings.
The ships mounted four 4.7-inch (120 mm) Mark IX guns in single mounts. For anti-aircraft (AA) defence, they had two quadruple Mark I mounts for the 0.5 inch Vickers Mark III machine gun. The I class was fitted with two above-water quintuple torpedo tube mounts for 21-inch (533 mm) torpedoes. One depth charge rack and two throwers were fitted; 16 depth charges were originally carried, but this increased to 35 shortly after the war began.
Construction and career
Impulsive was laid down on 9 March 1936 by J. Samuel White and Company at their Cowes shipyard, launched on 1 March 1937 and completed on 29 January 1938. She attacked and sank the German submarine U-457 in the Barents Sea north-east of Murmansk in Russia on 16 September 1942.
Impulsive was sold for scrap to W. H. Arnott, Young and Company, Limited on 22 January 1946 and broken up at Sunderland.
- Lenton, p. 161
- Whitley, p. 111
- English, p. 141
- English, John (1993). Amazon to Ivanhoe: British Standard Destroyers of the 1930s. Kendal, England: World Ship Society. ISBN 0-905617-64-9.
- Friedman, Norman (2009). British Destroyers From Earliest Days to the Second World War. Annapolis, Maryland: Naval Institute Press. ISBN 978-1-59114-081-8.
- Haarr, Geirr H. (2010). The Battle for Norway: April–June 1940. Annapolis, MD: Naval Institute Press. ISBN 978-1-59114-051-1.
- Haarr, Geirr H. (2009). The German Invasion of Norway, April 1940. Annapolis, Maryland: Naval Institute Press. ISBN 978-1-59114-310-9.
- Lenton, H. T. (1998). British & Empire Warships of the Second World War. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-048-7.
- Rohwer, Jürgen (2005). Chronology of the War at Sea 1939-1945: The Naval History of World War Two (Third Revised ed.). Annapolis, Maryland: Naval Institute Press. ISBN 1-59114-119-2.
- Whitley, M. J. (1988). Destroyers of World War Two: An International Encyclopedia. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-326-1.
- Winser, John de D. (1999). B.E.F. Ships Before, At and After Dunkirk. Gravesend, Kent: World Ship Society. ISBN 0-905617-91-6.