In 1936 E Graydon Stapp built the Stapp B-1 single-place, open cockpit biplane. Registered N13989 c/n ND-1, it was powered by a 40hp Ford engine.
In 1936 E Graydon Stapp built the Stapp B-1 single-place, open cockpit biplane. Registered N13989 c/n ND-1, it was powered by a 40hp Ford engine.