Stinson SM-1 Detroiter
Stinson Aircraft had introduced their large high-winged six-seat SM-1 Detroiter in 1927. The SM-1 was sold successfully to airlines and other commercial operators, but it was too large to appeal to private owners.
Stinson therefore redesigned the aircraft with shorter span wings, shorter fuselage and a choice of less powerful engines as the SM-2 Junior.
Engine: Wright J-5, 220 hp