The 1932 Stinson Model U (ATC 484) was a 10-12 seat cabin monoplane, designed by Art Saxon. Almost a sesquiplane with its stub wings on the undercarriage, they were priced at $19,500.
Twenty-three were built for American Airways, including one for competition (NR/NC12127), and one experimental model, NX12132, that crashed on 2 August 1933.
ATC 2-413 was for a weight adjustment for prototype X/NC432M c/n 9000.
The 1933 U-1 (ATC 2-437) was an 11 seat Model U with three 285hp Wright R-760 engines. One was built for Eastern Air Transport, NX12129 c/n 9014.
U
Engines: three 240hp Lycoming R-680BA
Wingspan: 66’2″ (stub-wing 14’3″)
Length: 45’3″
Useful load: 3100 lb
Max speed: 145 mph
Cruise: 123 mph
Stall: 60 mph
Range: 450-500 mi
Ceiling: 14,000′
Seats: 10-12
U-1
Engines: three 285hp Wright R-760.
Seats: 11
All Aero 