The Colyaer Martin3 S100 is a Spanish ultralight aircraft, designed and produced by Colyaer of Portonovo. The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight rules. It features a cantilever high-wing, a two-seats-in-side-by-side configuration enclosed cockpit, fixed tricycle landing gear and a single engine in pusher configuration. The aircraft is made from composites. Its 12.4 m (40.7 ft) span wing has an area of 12.0 m2 (129 sq ft) and flaps that can be deployed for landing and reflexed for cruise flight. The long wingspan gives the Martin3 a glide ratio of 23:1 and allows power-off soaring flights. The standard engine is the 100 hp (75 kW) Rotax 912ULS four-stroke powerplant. In 2015 the aircraft was marketed by Galicia Avionica SL.