The 1929 M2 evolved from the C3B model. Seven mail carriers were built (ATC 127), including one three-place with a 525hp P&W Hornet and larger fuel tanks under (2-149).
Engine: Wright R-1750 Cyclone, 525hp
Length: 30 ft 2 in
Height: 11 ft 1 in
Wing span upper: 46 ft
Wingspan lower: 32 ft
Chord Upper: 84 in
Chord lower: 54 in
Wing area: 436 sq.ft.
Airfoil: Goettingen 398
Empty wt: 3442 lb
Max weight: 5578 lb
Useful load: 2136 lb
Payload: 1026 lb
Fuel capacity: 136 USG
Oil cap: 15 USG
Ceiling: 16,000 ft
Range: 730 sm
Max speed: 147 mph
Cruise: 126 mph
Stall: 53 mpg
Price: US$18,000
All Aero 