The Questar Sport was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 2540NaN0. The aircraft has a standard empty weight of 1600NaN0.
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 tractor configuration.
The Questar Sport is made from bolted-together 6061-T6 aluminum tubing, with its flying surfaces covered in doped aircraft fabric. Its 33.251NaN1 span wing has a wing area of 165square feet, is supported by "V" struts and can be folded in ten minutes for ground transport or storage. The acceptable power range is 30to and the standard engines used are small 300NaN0 two-stroke powerplants.
The aircraft has a typical empty weight of 160lb and a gross weight of 400lb, giving a useful load of 240lb. With full fuel of the payload for the pilot and baggage is 222lb.
The standard day, sea level, no wind, take off distance with a 300NaN0 engine is 1200NaN0 and the landing roll is 800NaN0.
The manufacturer estimated the construction time from the supplied plans as 80 hours.
By 1998 the company reported that 120 sets of plans had been sold and that 30 aircraft were completed and flying.
