quadruple mount for 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 the throwers were not mounted in all ships; Twenty depth charges was the peacetime allotment, but this increased to 30 during wartime. Wartime modifications 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 Mark XVI dual-purpose guns in a twin-gun mount. To better control 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. and two, single 2 pounder guns were mounted on the bridge wings. Construction and career Authorized as one of seven Tribal-class destroyers under the 1935 Naval Estimates, Zulu was the second ship of her name to serve in the Royal Navy. The ship was ordered on 10 March 1936 from Alexander Stephen and Sons and was laid down on 27 August at the company's Linthouse shipyard. Launched on 23 September 1937, Zulu was commissioned on 6 September 1938 at a cost of £351,135 which excluded weapons and communications equipment that would be furnished by the Admiralty. During 1940 she developed engine trouble and was dry docked for repairs and degaussing. She returned to service in early March when she was employed escorting convoys around the Western Approaches. In June 1941, she sailed to Falmouth for a refit. Following this, she was attached to Force H at Gibraltar. On 4 August 1942, Zulu with , and attacked and sank off Haifa and Zulus commanding officer, Commander R.T. White, DSO was Mentioned in Despatches for his leadership. On the 14 September Zulu, Sikh and the light cruiser, landed and covered Operation Agreement, a commando raid on Tobruk. Sikh was hit and sunk by 152 mm Italian coastal artillery, German 88 mm guns and a bomb dropped by a Macchi C.200. 115 men were killed but Zulu was able to save lives of several of her crew. Later the same day, Coventry was heavily damaged by Junkers