The Commander Sport was designed to comply with the US Experimental - Amateur-built aircraft rules. It features a single main rotor, a single-seat open cockpit with a small cockpit fairing with a windshield, tricycle landing gear with a steerable nose wheel and wheel pants, plus a tail caster. The standard engine supplied was the twin cylinder, liquid-cooled, two-stroke, dual-ignition 64 hp (48 kW) Rotax 582 engine in pusher configuration. The 50 hp (37 kW) Rotax 503 and 40 hp (30 kW) Rotax 447 engines were factory options.[1]
The aircraft fuselage is made from metal tubing, while the fairing is fiberglass. Its two-bladed rotor has a diameter of 23.00 ft (7.0 m). The aircraft has a typical empty weight of 275 lb (125 kg) and a gross weight of 750 lb (340 kg), giving a useful load of 475 lb (215 kg). With full fuel of 9 U.S. gallons (34 L; 7.5 imp gal) the payload for the pilot and baggage is 421 lb (191 kg).[1]
The standard day, sea level, no wind, take off with a 64 hp (48 kW) engine is 100 ft (30 m) and the landing roll is 5 ft (2 m).[1]
Original factory kit options were a pre-rotator, cockpit fairing, wheels pants and long range fuel tank. The manufacturer estimated the construction time from the supplied kit as 30 hours and put completion time as 3–4 days work.[1]
