She served with the United Kingdom Mediterranean Fleet during World War II until she was bombed and sunk by German aircraft while at Malta in 1942.
[5] 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).
[6] 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.
[7] 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 the DCT to an analogue mechanical computer, the Mk I Admiralty Fire Control Clock.
[11] To increase the firing arcs of the AA guns, the rear funnel was shortened and the mainmast was reduced to a short pole mast.
[12] Authorized as one of seven Tribal-class destroyers under the 1935 Naval Estimates,[13] Maori was the second ship of her name to serve in the Royal Navy.
[16] Maori was completed on 30 November 1938 and commissioned on 5 December at a cost of £340,622 which excluded weapons and communications outfits furnished by the Admiralty.
While escorting Convoy WS-8B to the Middle East, Maori, along with the destroyers Cossack, Sikh and Zulu broke off on 26 May and headed towards the area where Bismarck had been reported.