Diana displaced 1,375 long tons (1,397 t) at standard load and 1,890 long tons (1,920 t) at deep load. The ship had an overall length of 329 feet (100.3 m), a beam of 33 feet (10.1 m) and a draught of 12 feet 6 inches (3.8 m). She was powered by Parsons geared steam turbines, driving two shafts, which developed a total of 36,000 shaft horsepower (27,000 kW) and gave a maximum speed of 36 knots (67 km/h; 41 mph). Steam for the turbines was provided by three Admiralty 3-drum water-tube boilers. Diana carried a maximum of 473 long tons (481 t) of fuel oil that gave her a range of 5,870 nautical miles (10,870 km; 6,760 mi) at 15 knots (28 km/h; 17 mph). The ship's complement was 145 officers and men.^[3]

The ship mounted four 45-calibre 4.7-inch Mark IX guns in single mounts. For anti-aircraft (AA) defence, Diana had a single 12-pounder AA gun between her funnels and two QF 2-pounder Mk II AA guns mounted on the side of her bridge. She was fitted with two above-water quadruple torpedo tube mounts for 21-inch torpedoes.^[4] One depth charge rail and two throwers were fitted; 20 depth charges were originally carried, but this increased to 35 shortly after the war began.^[5]

Diana was ordered under the 1930 Naval Estimates on 2 February 1931 from the yards of Palmers Shipbuilding and Iron Company, Hebburn-on-Tyne. She was laid down on 12 June 1931, launched on 16 June 1932 and finally commissioned into the Navy on 21 December 1932. She cost a total of £229,502, excluding the weapons and the communications equipment which were supplied by the Admiralty.^[6]

With the Royal Navy edit

The ship was initially assigned to the 1st Destroyer Flotilla in the Mediterranean and made a brief deployment to the Persian Gulf and Red Sea in September–November 1933.^[7] While in the Mediterranean, Diana was commanded by Geoffrey Oliver for a time.^[8] The ship was refitted at Sheerness Dockyard between 3 September and 23 October 1934 for service on the China Station with the 8th (later the 21st) Destroyer Flotilla and arrived there in January 1935. She was attached to the Mediterranean Fleet in the Red Sea from September 1935 to May 1936 during the Abyssinian Crisis and made port visits in Bombay and East Africa before returning to Hong Kong on 7 August. On one occasion in 1937 Diana investigated why a lighthouse near Amoy was not lit and discovered that it had been attacked by pirates. She remained in the Far East until the rise in tensions before World War II began prompted her recall in August 1939.^[9]

With the outbreak of war, Diana and her sisters Duncan, Daring, and Dainty, were assigned to the Mediterranean Fleet, arriving there in October. She was repaired at Malta during November and rejoining the fleet in December where she was briefly placed on contraband control duties before she was transferred to the Home Fleet's 3rd Destroyer Flotilla. Diana arrived in Home waters in January 1940, and was assigned to the 3rd Destroyer Flotilla. Here her duties included screening units of the Home Fleet and carrying out patrols. On 15 February, the ship escorted HMS Duncan as she towed by tugs from Invergordon to the Forth for permanent repairs, after the latter had been damaged in a collision whilst escorting a convoy.^[10]

During the Norwegian Campaign, Diana escorted the aircraft carrier HMS Furious as she returned to Scapa Flow on 25 April to replenish her aircraft. On 1 May, she screened the light cruisers HMS Manchester and HMS Birmingham of the 18th Cruiser Squadron as they covered the evacuations from Åndalsnes and the ship transported the Norwegian Commander-in-chief Major General Otto Ruge from Molde to Tromsø. The ship escorted the carriers HMS Glorious and Furious as the latter flew off RAF Gloster Gladiators fighters to Bardufoss airfield on 21 May. Ten days later Diana escorted the carriers HMS Ark Royal and Furious during Operation Alphabet, the Allied withdrawal from Norway.^[11]

Transfer to Canada edit

The ship was taken in hand for refit and repair in London in July. After their completion, Diana was transferred to the Royal Canadian Navy to replace HMCS Fraser which had been sunk in a collision on 25 June 1940 with the British anti-aircraft cruiser HMS Calcutta. The ship was formally commissioned into the Royal Canadian Navy as HMCS Margaree on 6 September 1940. On 17 October, she escorted Convoy OL8 bound for Canada,^[12] but the ship was sunk five days later when she was cut in two by the freighter MV Port Fairy just after midnight on 22 October.^[13] Of the 176 men aboard Margaree at the time, six officers and 28 ratings in the stern section, which remained afloat, were rescued by Port Fairy; the other 142 were lost.^[14]

• Douglas, W. A. B.; Sarty, Roger; Michael Whitby; Robert H. Caldwell; William Johnston; William G. P. Rawling (2002). No Higher Purpose. The Official Operational History of the Royal Canadian Navy in the Second World War, 1939–1943. Vol. 2, pt. 1. St. Catharines, Ontario: Vanwell. ISBN 1-55125-061-6.
• English, John (1993). Amazon to Ivanhoe: British Standard Destroyers of the 1930s. Kendal, England: World Ship Society. ISBN 0-905617-64-9.
• Friedman, Norman (2009). British Destroyers From Earliest Days to the Second World War. Annapolis, Maryland: Naval Institute Press. ISBN 978-1-59114-081-8.
• Haarr, Geirr H. (2010). The Battle for Norway: April–June 1940. Annapolis, MD: Naval Institute Press. ISBN 978-1-59114-051-1.
• Lenton, H. T. (1998). British & Commonwealth Warships of the Second World War. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-048-7.
• Whitley, M. J. (1988). Destroyers of World War 2. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-326-1.

• HMS Diana at Uboat.net
• HMS Diana's career