Mainair Rapier

The Mainair Rapier is a British flying wing ultralight trike that was designed and produced by Mainair Sports and later P&M Aviation. The aircraft was supplied as a completed aircraft or as a kit for amateur construction, followed by a factory inspection prior to flight.

The aircraft was designed as a lower-cost touring trike than the Mainair Blade. It complies with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of 450 kg (992 lb) and is certified to UK BCAR Section "S". The aircraft has a maximum gross weight of 370 kg (816 lb). It features a cable-braced hang glider-style high-wing, weight-shift controls, a two-seats-in-tandem, open cockpit, tricycle landing gear and a single engine in pusher configuration.

The aircraft is made from bolted-together aluminium tubing, with its double-surface wing covered in Dacron sailcloth. Its 10.6 m (34.8 ft) span wing is supported by a single tube-type kingpost and uses an "A" frame control bar. The occupants are accommodated in tandem seating, with a fibreglass cockpit fairing that includes a small windshield. To keep costs down, the factory supplied engine was the 37 kW (50 hp) Rotax 503 twin cylinder, two-stroke, air cooled powerplant. The twin cylinder, two-stroke, liquid cooled 48 kW (64 hp) Rotax 582 was an available option.