Original sentence: 7/30 called for a four-gun fighter with better high-altitude performance and endurance than current fighters, outstanding climb rate, manoeuvrability and all-round vision combined wth a low landing speed.The fabric-covered ailerons extended over the whole of the outer wing and could be lowered symmetrically (drooped) in lieu of traiditional flaps
Edited sentence: 7/30 called for a four-gun fighter with better high-altitude performance and endurance than current fighters, outstanding climb rate, manoeuvrability and all-round vision combined with a low landing speed.The fabric-covered ailerons extended over the whole of the outer wing and could be lowered symmetrically (drooped) in lieu of traditional flaps