| abstract | - The ship had an overall length of , a beam of , and a draught of at deep load. She displaced . Her three direct-drive steam turbines, each driving a propeller shaft, produced a total of . Steam was provided by four boilers. The ship carried of coal which meant that she could steam for at a speed of . Her crew numbered 218, including 76 aviation personnel. Vindex's main armament consisted of four 50-calibre, 12-pounder 18 cwt guns, with 130 rounds stored for each gun. They fired projectiles at a muzzle velocity of ; this gave a maximum range of . Their rate of fire was 15 rounds per minute. The ship also carried a single QF 6 pounder Hotchkiss anti-aircraft gun for which she carried 55 rounds. This had a maximum depression of 8° and a maximum elevation of 60°. It fired a shell at a muzzle velocity of at a rate of fire of 20 rounds per minute. It had a maximum ceiling of , but an effective range of only . The 12-pounder guns were later replaced by two anti-aircraft guns. Vindex was fitted with a long flying-off deck forward, intended for aircraft with wheeled undercarriages, and a prominent hangar aft. Two electric cranes were fitted aft and two derricks forward to handle her aircraft. Initially she carried two dismantled single-seat aircraft in her small forward hangar and five floatplanes in the hangar aft. Both aircraft in the forward hangar could be reassembled and flown off in about ten minutes. She was capable of operating up to seven aircraft, and during her career, operated a range of aircraft including the Sopwith Schneider, the Sopwith Pup and the Sopwith 1½ Strutter in addition to the aircraft mentioned.
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