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21-450: F33 may refer to : HMS Somali (F33) , a 1937 British Royal Navy Tribal-class destroyer Recurrent depressive disorder ICD-10 code Hirth F-33 , an aircraft engine F-33, Another name for the KF-21 . [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as

42-492: A letter–number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=F33&oldid=1154011101 " Category : Letter–number combination disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages HMS Somali (F33) HMS Somali

63-490: A single quadruple mount for the 40-millimetre (1.6 in) QF two-pounder Mk II "pom-pom" gun and two quadruple mounts for the 0.5-inch (12.7 mm) Mark III machine gun . Low-angle fire for the main guns was controlled by the director-control tower (DCT) on the bridge roof that fed data acquired by it and the 12-foot (3.7 m) rangefinder on the Mk II Rangefinder/Director directly aft of

84-526: A total of 44,000 shaft horsepower (33,000  kW ) and gave a maximum speed of 36 knots (67 km/h; 41 mph). During her sea trials Somali made 36.5 knots (67.6 km/h; 42.0 mph) from 44,207 shp (32,965 kW) at a displacement of 2,014 long tons (2,046 t). The ships carried enough fuel oil to give them a range of 5,700 nautical miles (10,600 km; 6,600 mi) at 15 knots (28 km/h; 17 mph). The ships' complement consisted of 190 officers and ratings , although

105-653: The Admiralty . On 3 September 1939, Somali intercepted the German freighter Hannah Böge , 350 miles south of Iceland, and took her as a prize. This was the first enemy merchant ship to be captured during the war. On 15 May 1940, during the Norwegian Campaign , Somali was carrying Brigadier the Hon. William Fraser , commander of 24th Guards Brigade , back to Harstad from a reconnaissance of Mo when she

126-582: The flotilla leaders carried an extra 20 officers and men consisting of the Captain (D) and his staff. The primary armament of the Tribal-class destroyers was eight quick-firing (QF) 4.7-inch (120 mm) Mark XII guns in four superfiring twin-gun mounts, one pair each fore and aft of the superstructure , designated 'A', 'B', 'X', and 'Y' from front to rear. The mounts had a maximum elevation of 40°. For anti-aircraft (AA) defence, they carried

147-573: The metacentric height . The resulting decrease in stability may need to be corrected by compromises elsewhere to keep the center of mass low. Because of this, superfiring arrangements, while common, are not used exclusively. Examples of non-superfiring designs include but are not limited to the Gangut , Imperatritsa Mariya , and Imperator Nikolai classes of battleships built for the Imperial Russian navy, as well as modern ships such as

168-525: The 1936 Naval Estimates, Somali has been the only ship of her name to serve in the Royal Navy. The ship was ordered on 19 June 1936 from Swan Hunter & Wigham Richardson and was laid down on 27 August at the company's Wallsend , Tyne and Wear , shipyard . launched on 24 August 1937, Somali was completed on 7 December 1938 and commissioned five days later. The ship cost £ 340,095 which excluded weapons and communications outfits furnished by

189-658: The DCT to an analogue mechanical computer , the Mk I Admiralty Fire Control Clock . Anti-aircraft fire for the main guns was controlled by the Rangefinder/Director which sent data to the mechanical Fuze Keeping Clock . The ships were fitted with a single above-water quadruple mount for 21-inch (533 mm) torpedoes. The Tribals were not intended as anti-submarine ships, but they were provided with ASDIC , one depth charge rack and two throwers for self-defence, although

210-975: The German weather ship München . Prior to being boarded, the crew of München threw overboard the ship's Enigma machine in a weighted bag. However, documents on the operation of the Enigma machine were left on board, as were vital codebooks providing a breakthrough for Allied codebreakers. On 13 August 1942, Somali rescued all 105 crew of the American cargo ship Almeria Lykes , which had been torpedoed by E boats while taking part in Operation Pedestal . The rescued crew were landed at Gibraltar . Lieutenant Commander Colin Maud took over as captain in September 1942 when her own captain, Jack Eaton,

231-630: The firepower of the existing destroyer flotillas and were thus significantly larger and more heavily armed than the preceding I class . The ships displaced 1,891 long tons (1,921  t ) at standard load and 2,519 long tons (2,559 t) at deep load . They had an overall length of 377 feet (114.9 m), a beam of 36 feet 6 inches (11.13 m) and a draught of 11 feet 3 inches (3.43 m). The destroyers 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

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252-443: The foremost and rearmost turrets, as well as an increase of useful deck space on which to build the ship's superstructure due to the concentration of the main batteries towards the ends of the ship. Depending on the design of the ship and its weapons, it may also help to avoid issues with the ship's propulsion. The disadvantage of this arrangement is a higher center of mass as a result of the higher placement of turrets, thus decreasing

273-500: The freezing water to save Lieutenant Commander Maud. Somali was the last Royal Navy Tribal-class destroyer to be sunk during the war. 69°11′N 15°32′W  /  69.183°N 15.533°W  / 69.183; -15.533 Superfiring Historically, large surface warships were known by the generic label of battleships , with a further distinction between pre-dreadnoughts and dreadnoughts . The era of technical evolution occurred roughly from 1900 to 1945. Part of

294-457: The guns, the existing rangefinder/director was modified to accept a Type 285 gunnery radar as they became available. The number of depth charges was increased to 46 early in the war, and still more were added later. To increase the firing arcs of the AA guns, the rear funnel was shortened and the mainmast was reduced to a short pole mast. Authorized as one of nine Tribal-class destroyers under

315-513: The higher turret would damage the lower one when firing over the top. In 1908, United States Navy tests using the monitor USS  Florida  (BM-9) as the testbed proved that superfiring was safe. The result was the design for the first South Carolina -class battleship (commissioned in 1910). The first ship with superfiring artillery (though not of the same caliber), was the French battleship Henri IV , launched in 1899. Superfiring

336-407: The technical evolution was driven by the need to compress as much large-gun firepower into the smallest space possible. In early designs, the large-caliber turrets were all located on the same plane firing to one side or the other. In firing ahead or to the rear, usually only the forward-most or rearmost turret could fire, especially at low angles. An early concern was that the pressure and shock from

357-581: The throwers were not mounted in all ships; Twenty depth charges was the peacetime allotment, but this increased to 30 during wartime. Heavy losses to German air attack during the Norwegian Campaign demonstrated the ineffectiveness of the Tribals' anti-aircraft suite and the RN decided in May 1940 to replace 'X' mount with two QF 4-inch (102 mm) Mark XVI dual-purpose guns in a twin-gun mount. To better control

378-642: Was a Tribal-class destroyer of the British Royal Navy that saw service in World War II . She was launched in 1937, captured the first prize of World War II and served in Home and Mediterranean waters. She was torpedoed on 20 September 1942 in the Arctic and foundered five days later while under tow. The Tribals were intended to counter the large destroyers being built abroad and to improve

399-645: Was bombed by German aircraft and forced to return to the United Kingdom for repairs, taking the Brigadier with her. He did not reach Harstad until 23 May. On 23 October, Matabele , Punjabi and Somali shelled and sank WBS 5 Adolf Vinnen in the Norwegian Sea off Stadlandet , Norway. Somali was the leader of the 6th Destroyer Flotilla and spent most of the winter of 1940–41 screening Home Fleet sweeps. In May 1941, Somali boarded

420-640: Was ill. On 20 September 1942 Somali was torpedoed by U-703 while covering Convoy QP 14 during the Russian convoys. She was hit in her engine room, and although taken under tow by the destroyer Ashanti , she sank on 25 September, after heavy weather broke her back. Of the 102 men on board, only 35 were rescued from the Arctic waters. Leading Seaman Goad of Ashanti was awarded the Albert Medal for "great bravery in saving life at sea" after diving into

441-650: Was not limited to two turrets. For example, the Atlanta -class of light cruiser , which were developed and built for service in World War II , utilized a triple-overlap system both forward and astern, their armament of dual-mount 5"/38 caliber dual-purpose main armament having a nearly unobstructed arc of fire. The British Dido -class , which were also light cruisers armed entirely with dual-purpose guns (the 5.25" Mk 1 ), also had three turrets forward, with two aft. Advantages of superfiring turrets over non-superfiring arrangements include improved firing arcs for all except

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