The company appears to have gone out of business and ended production in the end of 2007.[2]
The Air Sylphe 447 was designed to comply with the U.S. FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 1150NaN0. The aircraft has a standard empty weight of 880NaN0. It features a 35m2 parachute-style wing, single-place accommodation, tricycle landing gear and a single 400NaN0 Rotax 447 engine in pusher configuration. The 500NaN0 Rotax 503 engine was a factory option.[1]
The aircraft carriage is built from metal tubing with a ducted fan derived from an industrial air ventilation system. The main landing gear incorporates spring rod suspension.[1]
The aircraft has an empty weight of 880NaN0 and a gross weight of 2100NaN0, giving a useful load of 1220NaN0. With full fuel of the payload for crew and baggage is 1090NaN0. A version with a gross weight of 3100NaN0 to accommodate heavier pilots was also built.[1]