The Alpaero Sirius, also called the Noin Sirius, is a French high-wing, strut-braced, pod-and-boom, cruciform tail, single-seat motor glider that was designed by Claude Noin and produced by his company, Alpaero of Châteauvieux, Hautes-Alpes.
[1][2] Named for the star, the prototype Sirius was made from wood, tube and aircraft fabric and first flew in August 1984.
[2] The production Sirius fuselage is predominantly made from fibreglass, with wooden bulkheads.
The wing's leading edge is fabricated from hot-wire cut foam, laminated with fibreglass.
The 18 kW (24 hp) König SC 430 engine, or alternatively the 13.5 kW (18 hp) JPX D-320 engine, is mounted behind the cockpit and beneath the tail boom in pusher configuration and features a propeller guard plate just behind the main wheel.