Fournier RF-3

The Fournier RF-3 is a single-seat motor glider designed by René Fournier and first flown in 1960.
Design and development.
Fournier produced the Volkswagen-powered RF-1 single-seat motor-glider with a high-aspect ratio low-mounted wing, registered "F-WJGX" it first flew on 6 July 1960. Fournier followed it with an improved variant, the RF-2 using a Rectimo AR.1200 engine, the first of two-built, with the help of Centre Est, first flew in June 1962. 
Fournier started a company Societé Alpavia to manufacture a production variant of the RF-2, named the RF-3. The first RF-3 was exhibited at the June 1963 Paris Air Show. Series production commenced later that year. 
An aerobatic variant with a strengthened airframe was produced as the Fournier RF-4.