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 were intended to give a maximum speed of 35.5 knots (65.7 km/h; 40.9 mph). The ships carried enough fuel oil to give them a range of 5,500 nautical miles (10,200 km; 6,300 mi) at 15 knots (28 km/h; 17 mph). Their crew numbered 145 officers and ratings.[1]
Inconstant was laid down as TCG Muavenet for the Turkish Navy by Vickers Armstrong at their Barrow-in-Furness shipyard on 24 May 1939, purchased in September 1939 by the Royal Navy, launched on 24 February 1941 and commissioned on 24 January 1942. The ship participated in the assault on Madagascar in May 1942, and attacked and sank the German submarines U-409 in the Mediterranean north-east of Algiers on 12 July 1943 and U-767 while in company with the destroyers Fame and Havelock in the English Channel south-west of Guernsey on 18 June 1944. Inconstant was returned to Turkey on 9 March 1946 and renamed Muavenet. She was discarded in 1960.
English, John (1993). Amazon to Ivanhoe: British Standard Destroyers of the 1930s. Kendal, England: World Ship Society. ISBN0-905617-64-9.
Friedman, Norman (2006). British Destroyers & Frigates: The Second World War and After. Annapolis, Maryland: Naval Institute Press. ISBN1-86176-137-6.
Hodges, Peter & Friedman, Norman (1979). Destroyer Weapons of World War 2. Greenwich: Conway Maritime Press. ISBN978-0-85177-137-3.
Lenton, H. T. (1998). British & Empire Warships of the Second World War. Annapolis, Maryland: Naval Institute Press. ISBN1-55750-048-7.
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. ISBN1-59114-119-2.
Whitley, M. J. (1988). Destroyers of World War Two: An International Encyclopedia. Annapolis, Maryland: Naval Institute Press. ISBN0-87021-326-1.
External linksedit
IWM Interview with John Eaden, who commanded HMS Inconstant in 1943
January 01, 1970
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For other ships with the same name see HMS Inconstant and TCG Muavenet HMS Inconstant was an I class destroyer built for the Turkish Navy but was purchased by the Royal Navy in 1939 Inconstant in 1941History United Kingdom NameInconstant BuilderVickers Armstrongs Laid down24 May 1939 as Muavenet Launched24 February 1941 Commissioned24 January 1942 Decommissioned1946 IdentificationPennant number H49 FateReturned to Turkey 9 March 1946 Turkey NameMuavenet Acquired9 March 1946 FateScrapped 1960 General characteristics as built Class and typeI class destroyer Displacement1 360 long tons 1 380 t standard 1 880 long tons 1 910 t deep load Length323 ft 98 5 m o a Beam33 ft 10 1 m Draught12 ft 6 in 3 8 m Installed power3 Admiralty 3 drum boilers 34 000 shp 25 000 kW Propulsion2 shafts 2 geared steam turbines Speed35 5 knots 65 7 km h 40 9 mph Range5 500 nmi 10 200 km 6 300 mi at 15 knots 28 km h 17 mph Complement145 Sensors and processing systemsASDIC Type 286 search radar Armament4 single 4 7 in 120 mm guns 1 single 12 pdr 3 in 76 mm AA gun 4 single 20 mm 0 8 in AA guns 1 quadruple 21 in 533 mm torpedo tubes 1 rack and 2 throwers for 35 depth charges Service record Operations Operation Ironclad 1942 Victories Sank U 409 and U 767 Contents 1 Description 2 Construction and career 3 Notes 4 Bibliography 5 External linksDescription editThe 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 were intended to give a maximum speed of 35 5 knots 65 7 km h 40 9 mph The ships carried enough fuel oil to give them a range of 5 500 nautical miles 10 200 km 6 300 mi at 15 knots 28 km h 17 mph Their crew numbered 145 officers and ratings 1 The Turkish ships mounted four 4 7 inch 120 mm Mark IX guns in single mounts designated A B X and Y from bow to stern While under construction their anti aircraft AA armament was augmented by a single 12 pounder 3 in 76 mm AA gun that replaced the planned aft set of torpedo tubes In addition the intended pair of quadruple mounts for the 0 5 inch Vickers Mark III machine gun were replaced by a pair of 20 millimeter 0 8 in Oerlikon light AA guns They were fitted with a single above water quadruple torpedo tube mount amidships for 21 inch 533 mm torpedoes 2 One depth charge rack and two throwers were fitted for 35 depth charges 3 The Turkish ships were fitted with the ASDIC sound detection system to locate submarines underwater 4 and a Type 286 search radar 1 Construction and career editInconstant was laid down as TCG Muavenet for the Turkish Navy by Vickers Armstrong at their Barrow in Furness shipyard on 24 May 1939 purchased in September 1939 by the Royal Navy launched on 24 February 1941 and commissioned on 24 January 1942 The ship participated in the assault on Madagascar in May 1942 and attacked and sank the German submarines U 409 in the Mediterranean north east of Algiers on 12 July 1943 and U 767 while in company with the destroyers Fame and Havelock in the English Channel south west of Guernsey on 18 June 1944 Inconstant was returned to Turkey on 9 March 1946 and renamed Muavenet She was discarded in 1960 Notes edit a b Lenton p 163 Whitley p 111 English p 141 Hodges amp Friedman p 16Bibliography editColledge J J Warlow Ben 2006 1969 Ships of the Royal Navy The Complete Record of all Fighting Ships of the Royal Navy Rev ed London Chatham Publishing ISBN 978 1 86176 281 8 English John 1993 Amazon to Ivanhoe British Standard Destroyers of the 1930s Kendal England World Ship Society ISBN 0 905617 64 9 Friedman Norman 2006 British Destroyers amp Frigates The Second World War and After Annapolis Maryland Naval Institute Press ISBN 1 86176 137 6 Hodges Peter amp Friedman Norman 1979 Destroyer Weapons of World War 2 Greenwich Conway Maritime Press ISBN 978 0 85177 137 3 Lenton H T 1998 British amp Empire Warships of the Second World War Annapolis Maryland Naval Institute Press ISBN 1 55750 048 7 Rohwer Jurgen 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 External links editIWM Interview with John Eaden who commanded HMS Inconstant in 1943 Retrieved from https en wikipedia org w index php title HMS Inconstant H49 amp oldid 1151516863, wikipedia, wiki, book, books, library,
