The submarine was long, with a beam of , and a draught of when surfaced. At full load displacement, she displaced 2,030 tons when surfaced, and 2,410 tons when submerged. The two propeller shafts were each driven by an English Electric motor providing and ; the electricity for these was generated by two Admiralty Standard Range supercharged V16 diesel generators. The submarine could travel at up to on the surface, and up to when submerged, had a maximum range of at , and a test depth of . When launched, the boat had a company of 8 officers and 56 sailors, but by the time she decommissioned, the number of sailors had increased to 60. In addition, up to 16 trainees could be carried.