This aircraft is often described as a WA.81 on other web sites but the above information was taken from the data plate still riveted to the aircraft. From Wikipedia: The Wassmer WA-80 Piranha was a two-seat low-wing cabin monoplane trainer designed and built by Société Wassmer. It was was a scaled down version of the company's WA-50 four-seater, and the prototype, registered F-WVKR, first flew in November 1975 powered by a 100 hp Rolls-Royce Continental O-200 engine.

This aircraft, the prototype Piranha first flew in November 1975 and by January 1977 20 had been ordered and 10 built. The company went into liquidation in September 1977 with their assets being taken over by Issoire Aviation and this aircraft became the Issoire IA 80 Piranha