08/31/2014. Remarks by Johan Visschedijk: "Roland Duruble, Guy Chanut and a Mr. Legrand, all of Rouen, designed and built a two-seat all-metal light aircraft named the RD-02 Edelweiss, which flew for the first time on July 7, 1962, registered as F-WKVF. After the aircraft gained its CofA it was reregistered as F-PKVF to Duruble and Chanut on April 9, 1963. The prototype Edelweiss had a 65 hp Walter Mikron engine, but alternative power plants could be fitted, including a 90 hp Continental flat-four. Plans were available to amateur constructors.

The RD-03 Edelweiss, a four-seat development but relatively little in common with the RD-02, was designed by 1970, but the first was not flown till 1982."