The fuselage was tightly packed, leaving no room for fuel tankage or main landing gear. While the notched delta wing lacked the volume of a standard delta wing, each wing contained a fairly conventional three-section main fuel tank and leading-edge tank, holding ; the wing flaps also each contained a fuel tank and an additional was contained in a fuel recuperator, bringing the aircraft's total internal fuel capacity to . The main landing gear was sandwiched outboard of the main tanks and aft of the leading edge tanks, with the flap fuel tanks behind. The long main gear legs retracted towards the wingtip, necessitating an exceptionally thin main tyre inflated to the high pressure of . On landing the No. 1 engine was usually shut down when taxiing to save brake wear, as keeping both engines running at idle power was still sufficient to propel the Lightning to 80 mph if brakes were not used. Dunlop Maxaret anti-skid brakes were fitted.