| abstract | - Esk 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. Esk 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 (120 mm) Mark IX guns in single mounts. For anti-aircraft (AA) defence, Esk had two quadruple Mark I mounts for the 0.5 inch Vickers Mark III machine gun. She was fitted with two above-water quadruple torpedo tube mounts for torpedoes. To compensate for the weight of her 60 Mark XIV mines, their rails and the mechanical chain-conveyor system, two of Esk's 4.7-inch guns, their ammunition, both sets of torpedo tubes, her whalers and their davits had to be removed. She was given small sponsons at the stern to ensure smooth delivery of her mines.
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