Built in 1931, the Rider R-1 was racer San Francisco II, piloted by Bob Clampett and Ray Moore, registered NX52Y.
It was modified as 1933-34 Bumblebee (p: George Hague, Earl Ortman) and did not reappear until the 1938 Nationals as 260hp Bushey-McGrew B7M1 Bumblebee, re-registered NX98Y.
Engine: 200hp Menasco C-4
Wingspan: 17’0″
Length: 19’0″
Useful load: 300 lb approx.
Speed: 210 mph
Seats: 1
All Aero 