01/31/2012. Remarks by Walter van Tilborg: "The CQR-1 two-seat homebuilt aircraft was more or less a scaled-up development of the Roussoulières Occitan and was a design of Louis Cariou, former RSA President. The prototype CQR-1 flew for the first time on March 2, 1997 and it was constructed by the RSA at Centre Régional de Construction Aéronautique Amateur Quercy-Rouergue (CQR) under the leadership of Charles Roussoulières. This aircraft was powered by a 90 hp Limbach L2400EO3 engine. A second very similar aircraft was also completed in France in 1998 or 1999 and by late 2010 at least 6 were constructed."