R.B. Johnson patented circular (disc) wing aircraft 1931, built Uniplane 1934 with 'fuselage' forming deep diameter across underside of circular wing with convex (downsloping) top; flown Harlem Airport, near Chicago, 1935.
R.B. Johnson patented circular (disc) wing aircraft 1931, built Uniplane 1934 with 'fuselage' forming deep diameter across underside of circular wing with convex (downsloping) top; flown Harlem Airport, near Chicago, 1935.