[1][2] The Questar Open Aire was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 254 lb (115 kg).
[1] The aircraft features a strut-braced high-wing, a single-seat open cockpit without a windshield, fixed conventional landing gear without wheel pants and a single engine in pusher configuration.
[1] The Questar Open Aire is made from bolted-together aluminum tubing and wood, with its flying surfaces covered in doped aircraft fabric.
With full fuel of 3 U.S. gallons (11 L; 2.5 imp gal) the payload for the pilot and baggage is 212 lb (96 kg).
[1] The standard day, sea level, no wind, take off and landing roll with a 30 hp (22 kW) engine is 100 ft (30 m).