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I-class destroyer

January 21, 2023

For the World War I I-class Destroyers, see Acheron-class destroyer.

The I-class destroyers were a group of nine destroyers, including a flotilla leader, built for the Royal Navy during the 1930s. Four similar ships were ordered by the Turkish Navy, of which two were purchased for the Royal Navy, bringing the number of these ships British service to 11—although three of the original ships had been lost by the time Inconstant and Ithuriel were commissioned. The I-class served in World War II and six were lost, with a seventh ship being written off.

Class overview
NameI class
Operators
Preceded byG and H class
Succeeded byTribal class
In commission1937–1960
Completed13
Lost6
Scrapped7
General characteristics (as built)
TypeDestroyer
Displacement
Length323 ft (98.5 m)
Beam33 ft (10.1 m)
Draught12 ft 5 in (3.8 m)
Installed power
Propulsion2 shafts; 2 geared steam turbines
Speed36 knots (67 km/h; 41 mph)
Range5,530 nmi (10,240 km; 6,360 mi) at 15 knots (28 km/h; 17 mph)
Complement137 (peacetime), 145 (wartime)
Sensors and
processing systems		ASDIC
Armament

Design

The I-class were a repeat of the preceding H class, except that they had ten torpedo tubes (two banks of five) instead of eight. They incorporated the new bridge and wheelhouse layout as tested in Hero and Hereward (except the flotilla leader Inglefield). Inglefield also had a larger tripod foremast, her sisters having pole masts. The extra weight of the torpedo tubes and the fitting of minesweeps and depth charge gear (previous vessels carried one or the other) on the same hull as the H class, caused a loss of stability, needing ballast when bunker levels were low.

All ships were fitted for minesweeping and with depth charges and Asdic for anti-submarine (A/S) work and were capable of conversion to minelayers. For this, they landed 'A' and 'Y' 4.7 inch guns, the torpedo tubes and their minesweeps, allowing carriage of up to 60 mines but only four ships were used like this (see below).

Turkish ships

The Turkish I-class ships were of a similar design to their British counterparts but shipped only eight torpedoes (two banks of four) like the British H class.

Wartime modifications

Early war modifications involved replacing the after bank of torpedoes with a QF 12-pounder (3 inch/76 mm) anti-aircraft (AA) gun, cutting down the after funnel and mainmast to improve its field of fire and adding a pair of QF 20 mm Oerlikon guns in the bridge wings. Radar Type 286, a metric wavelength surface-warning set, was added as it became available and the ineffective multiple 0.5 in (13 mm) Vickers machine guns were replaced with Oerlikons; the central tube was deleted from the torpedo launchers to lessen topweight. Icarus lost 'Y' gun to stow extra depth charges (for a total load of 110) and their mortars. Surviving ships received a third pair of Oerlikons, added abreast the searchlight position and the 12-pounder was deleted to increase depth charge stowage. In some ships, 'A' gun was replaced with a Hedgehog forward-throwing A/S weapon but this alteration seems to have been reversed at a later stage. Ilex, Intrepid, Impulsive and Isis had 'B' gun removed and two QF 6-pounder 10 cwt (2.25 inch/57 mm L/47) guns were added on the twin mounting Mark I* along with a Hedgehog, the former for anti-E boat work.

Inglefield later had the second bank of torpedo tubes re-instated but like her sisters, the central tube was removed. A 4 in (100 mm) AA gun was added in lieu of 'X' gun and she had six Oerlikons. Type 291 radar was later added at the foremast head as well as Huff-Duff in some ships.

The ex-Turkish ships were modified along similar lines to their I-class sisters. Inconstant later received Type 270 radar, a centimetric wavelength target-indication set, in lieu of the director and rangefinder on the bridge. Again, eventually six Oerlikons were carried.

Ships

Construction data
Ship Builder Laid down Launched Commissioned Fate
Icarus [a] John Brown & Company, Clydebank 9 March 1936 26 November 1936 3 May 1937 Sold for scrap, 29 October 1946
Ilex 28 January 1937 7 July 1937 Sold for scrap, 1947
Imogen Hawthorn Leslie & Company, Hebburn 18 January 1936 30 October 1936 2 June 1937 Sank after a collision with the cruiser Glasgow, 16 July 1940
Imperial 29 January 1936 11 December 1936 30 June 1937 Severely damaged by air attack, 29 May 1941, sunk by torpedoes from Hotspur
Impulsive [a] J. Samuel White, Cowes 9 March 1936 1 March 1937 29 January 1938 Sold for scrap, 22 January 1946
Inglefield Cammell Laird & Company, Birkenhead 29 April 1936 15 October 1936 25 June 1937 Sunk by German radio-controlled glide bomb, 25 February 1944
Intrepid [a] J. Samuel White, Cowes 6 January 1936 17 December 1936 29 July 1937 Sunk by German bombers, 26 September 1943
Isis Yarrow & Company, Scotstoun 5 February 1936 12 December 1936 2 June 1937 Mined and sunk off Normandy beaches, 20 July 1944
Ivanhoe [a] 12 February 1936 11 February 1937 24 August 1937 Mined and sunk off Texel, 1 September 1940
  1. ^ a b c d Fitted as minelayer

Turkish ships

Four ships were ordered for the Turkish Navy in 1938. Upon the outbreak of war, two were purchased by the British but two were delivered to Turkey in 1942 as the Sultanhisar and the Demirhisar.

Construction data
Ship Builder Laid down Launched Completed Fate
Inconstant (ex-Muavenet) Vickers, Barrow 24 May 1939 24 February 1941 24 January 1942 Acquired 14 November 1941, returned to Turkey 9 March 1946, sold for scrap, 1960
Ithuriel (ex-Gayret) 15 December 1940 3 March 1942 Bombed at Bône 28 November 1942 and beached; sold for scrap, 25 August 1945
Sultanhisar William Denny, Dumbarton 21 March 1939 17 December 1940 28 June 1941 Delivered to Turkey in 1942, decommissioned 1960
Demirhisar 1939 1941 1942 Delivered to Turkey in 1942, decommissioned 1960

Notes

Bibliography

  • Colledge, 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: World Ship Society. ISBN 0-905617-64-9.
  • Friedman, Norman (2006). British Destroyers & Frigates: The Second World War and After. Annapolis, Maryland: Naval Institute Press. ISBN 1-86176-137-6.
  • Hodges, Peter & Friedman, Norman (1979). Destroyer Weapons of World War 2. Greenwich: Conway Maritime Press. ISBN 978-0-85177-137-3.
  • Lenton, H. T. (1998). British & Empire Warships of the Second World War. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-048-7.
  • Lyon, Hugh & Chumbley, Stephen (1995). "Turkey". In Chumbley, Stephen (ed.). Conway's All the World's Fighting Ships 1947-1995. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-132-7.
  • March, Edgar J. (1966). British Destroyers: A History of Development, 1892-1953; Drawn by Admiralty Permission From Official Records & Returns, Ships' Covers & Building Plans. London: Seeley Service. OCLC 164893555.
  • 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.
  • Smith, Peter C. (2005). Into the Minefields: British Destroyer Minelaying 1918–1980. Barnsley, UK: Pen & Sword Books. ISBN 1-84415-271-5.
  • Whitley, M. J. (1988). Destroyers of World War Two: An International Encyclopedia. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-326-1.

External links

 
Wikimedia Commons has media related to I class destroyer.

January 21, 2023
class, destroyer, world, class, destroyers, acheron, class, destroyer, were, group, nine, destroyers, including, flotilla, leader, built, royal, navy, during, 1930s, four, similar, ships, were, ordered, turkish, navy, which, were, purchased, royal, navy, bring. For the World War I I class Destroyers see Acheron class destroyer The I class destroyers were a group of nine destroyers including a flotilla leader built for the Royal Navy during the 1930s Four similar ships were ordered by the Turkish Navy of which two were purchased for the Royal Navy bringing the number of these ships British service to 11 although three of the original ships had been lost by the time Inconstant and Ithuriel were commissioned The I class served in World War II and six were lost with a seventh ship being written off HMS ImogenClass overviewNameI classOperators Royal Navy Turkish NavyPreceded byG and H classSucceeded byTribal classIn commission1937 1960Completed13Lost6Scrapped7General characteristics as built TypeDestroyerDisplacement1 370 long tons 1 390 t standard 1 888 long tons 1 918 t deep load Length323 ft 98 5 m Beam33 ft 10 1 m Draught12 ft 5 in 3 8 m Installed power34 000 shp 25 000 kW 3 Admiralty 3 drum boilersPropulsion2 shafts 2 geared steam turbinesSpeed36 knots 67 km h 41 mph Range5 530 nmi 10 240 km 6 360 mi at 15 knots 28 km h 17 mph Complement137 peacetime 145 wartime Sensors and processing systemsASDICArmament4 1 QF 4 7 inch 120 mm Mk IX guns 2 4 0 5 inch 12 7 mm machine guns 2 5 21 inch 533 mm torpedo tubes 20 Depth charges 1 rack and 2 throwers 60 mines minelayers only Contents 1 Design 1 1 Turkish ships 1 2 Wartime modifications 2 Ships 2 1 Turkish ships 3 Notes 4 Bibliography 5 External linksDesign EditThe I class were a repeat of the preceding H class except that they had ten torpedo tubes two banks of five instead of eight They incorporated the new bridge and wheelhouse layout as tested in Hero and Hereward except the flotilla leader Inglefield Inglefield also had a larger tripod foremast her sisters having pole masts The extra weight of the torpedo tubes and the fitting of minesweeps and depth charge gear previous vessels carried one or the other on the same hull as the H class caused a loss of stability needing ballast when bunker levels were low All ships were fitted for minesweeping and with depth charges and Asdic for anti submarine A S work and were capable of conversion to minelayers For this they landed A and Y 4 7 inch guns the torpedo tubes and their minesweeps allowing carriage of up to 60 mines but only four ships were used like this see below Turkish ships Edit The Turkish I class ships were of a similar design to their British counterparts but shipped only eight torpedoes two banks of four like the British H class Wartime modifications Edit Early war modifications involved replacing the after bank of torpedoes with a QF 12 pounder 3 inch 76 mm anti aircraft AA gun cutting down the after funnel and mainmast to improve its field of fire and adding a pair of QF 20 mm Oerlikon guns in the bridge wings Radar Type 286 a metric wavelength surface warning set was added as it became available and the ineffective multiple 0 5 in 13 mm Vickers machine guns were replaced with Oerlikons the central tube was deleted from the torpedo launchers to lessen topweight Icarus lost Y gun to stow extra depth charges for a total load of 110 and their mortars Surviving ships received a third pair of Oerlikons added abreast the searchlight position and the 12 pounder was deleted to increase depth charge stowage In some ships A gun was replaced with a Hedgehog forward throwing A S weapon but this alteration seems to have been reversed at a later stage Ilex Intrepid Impulsive and Isis had B gun removed and two QF 6 pounder 10 cwt 2 25 inch 57 mm L 47 guns were added on the twin mounting Mark I along with a Hedgehog the former for anti E boat work Inglefield later had the second bank of torpedo tubes re instated but like her sisters the central tube was removed A 4 in 100 mm AA gun was added in lieu of X gun and she had six Oerlikons Type 291 radar was later added at the foremast head as well as Huff Duff in some ships The ex Turkish ships were modified along similar lines to their I class sisters Inconstant later received Type 270 radar a centimetric wavelength target indication set in lieu of the director and rangefinder on the bridge Again eventually six Oerlikons were carried Ships EditConstruction data Ship Builder Laid down Launched Commissioned FateIcarus a John Brown amp Company Clydebank 9 March 1936 26 November 1936 3 May 1937 Sold for scrap 29 October 1946Ilex 28 January 1937 7 July 1937 Sold for scrap 1947Imogen Hawthorn Leslie amp Company Hebburn 18 January 1936 30 October 1936 2 June 1937 Sank after a collision with the cruiser Glasgow 16 July 1940Imperial 29 January 1936 11 December 1936 30 June 1937 Severely damaged by air attack 29 May 1941 sunk by torpedoes from HotspurImpulsive a J Samuel White Cowes 9 March 1936 1 March 1937 29 January 1938 Sold for scrap 22 January 1946Inglefield Cammell Laird amp Company Birkenhead 29 April 1936 15 October 1936 25 June 1937 Sunk by German radio controlled glide bomb 25 February 1944Intrepid a J Samuel White Cowes 6 January 1936 17 December 1936 29 July 1937 Sunk by German bombers 26 September 1943Isis Yarrow amp Company Scotstoun 5 February 1936 12 December 1936 2 June 1937 Mined and sunk off Normandy beaches 20 July 1944Ivanhoe a 12 February 1936 11 February 1937 24 August 1937 Mined and sunk off Texel 1 September 1940 a b c d Fitted as minelayer Turkish ships Edit Four ships were ordered for the Turkish Navy in 1938 Upon the outbreak of war two were purchased by the British but two were delivered to Turkey in 1942 as the Sultanhisar and the Demirhisar Construction data Ship Builder Laid down Launched Completed FateInconstant ex Muavenet Vickers Barrow 24 May 1939 24 February 1941 24 January 1942 Acquired 14 November 1941 returned to Turkey 9 March 1946 sold for scrap 1960Ithuriel ex Gayret 15 December 1940 3 March 1942 Bombed at Bone 28 November 1942 and beached sold for scrap 25 August 1945Sultanhisar William Denny Dumbarton 21 March 1939 17 December 1940 28 June 1941 Delivered to Turkey in 1942 decommissioned 1960Demirhisar 1939 1941 1942 Delivered to Turkey in 1942 decommissioned 1960Notes EditBibliography 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 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 Lyon Hugh amp Chumbley Stephen 1995 Turkey In Chumbley Stephen ed Conway s All the World s Fighting Ships 1947 1995 Annapolis Maryland Naval Institute Press ISBN 1 55750 132 7 March Edgar J 1966 British Destroyers A History of Development 1892 1953 Drawn by Admiralty Permission From Official Records amp Returns Ships Covers amp Building Plans London Seeley Service OCLC 164893555 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 Smith Peter C 2005 Into the Minefields British Destroyer Minelaying 1918 1980 Barnsley UK Pen amp Sword Books ISBN 1 84415 271 5 Whitley M J 1988 Destroyers of World War Two An International Encyclopedia Annapolis Maryland Naval Institute Press ISBN 0 87021 326 1 External links Edit Wikimedia Commons has media related to I class destroyer Retrieved from https en wikipedia org w index php title I class destroyer amp oldid 1062004650, wikipedia, wiki, book, books, library,

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