abstract
| - Diana displaced at standard load and at deep load. The ship had an overall length of , a beam of and a draught of . She was powered by Parsons geared steam turbines, driving two shafts, which developed a total of and gave a maximum speed of . Steam for the turbines was provided by three Admiralty 3-drum water-tube boilers. Diana carried a maximum of of fuel oil that gave her a range of at . The ship's complement was 145 officers and men. 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. 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. 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.
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