Jul 052011
Granville Racing Gyroplane (1935)

The author stumbled across this drawing of the “Granville Racing Gyroplane” while reviewing NACA files at National Archives II in College Park, Maryland; it apparently originates from the February 1935 issue of Aero Digest magazine, a long defunct publication devoted to aeronautics news. The basic aircraft looks very similar to the the Gee Bee R-1/R-2 […]