Boeing Stearman, is an open cockpit two seater biplane powered by a 9 cylinder – 450 hp Pratt & Whitney radial (the original version has had a 220 hp engine), from 1942.
Most of the american military pilots start flying on the Boeing Sterman, able for aerobatic.
Peggy's Boeing Stearman is modified for the WingWalking and has a Smoke-System.
