Wassmer
Wassmer was a French specialized woodworking company formed by Bernard Wassmer in 1905. It later became an aircraft manufacturer specializing in gliders. It was bought out by Issoire Aviation, a subsidiary of Siren, in 1978.
Aircraft production
The company entered into aircraft production in 1955 when it produced under licence a batch of Jodel D.112 two-seater aircraft at its factory at Issoire. The company also produced the single-seat WA-20 and two-seat WA-30 gliders. In 1959 the company produced the WA-40 Super IV a four-seat touring aircraft.
In 1972 in co-operation with Siren they formed a joint company Consortium Europeén de Réalisation et de Ventes d'Avions (CERVA) to build a metal variant of the WA4/21, itself a variant of the WA-40. The components for the Cerva CE.43 Guépard were manufactured by Siren at Argenton-sur-Creuse and final assembly, equipment fitting and flight testing was carried out by Wassmer at Issoire. The company also co-operated with the CE-75 sailplane.