E' il Duster di Edgardo Goldoni.
The BJ-1b
Duster is a homebuilt, wooden sailplane with a 13 meter wingspan and an L/D of 28+. It was designed by Hank Thor in the late-1960s to be simple and inexpensive to build. To date, over 70 Dusters have been built and flown worldwide. During the 1970s and 80s, the plans were sold by Hank Thor via California Sailplanes and a kit was offered by DSK (which stood for Duster Sailplane Kits.) These are now available only on the secondary market, but with 371 sets of plans and 169 kits produced, your odds are still good.