The Firefly was equipped with an all-metal wing which could be folded manually, the wings ending up along the sides of the fuselage when folded. When in the flying position, the wings were hydraulically locked in place. The wing itself featured square tips and large Fairey-Youngman flaps, which provided relatively good handling while flown at low speeds. A total of four 20mm cannon were buried within the wings, which was considered to be relatively heavy armament for the era. According to pilots, the general handling of the Firefly was relatively well-balanced, but a level of physical strength was required to effectively execute aerobatics.