The 1940 Southernaire BM-10 was a 2 place, open cockpit biplane. Metal-framed fuselage, metal and fabric covered, wood and fabric wings and tail group. NX17670 was refitted with 225hp Jacobs L-4.
Engine: 220hp Continental R-670
Wingspan: (upper): 34’1″
Wingspan (lower): 33’0″
Length: 25’2″
Loaded wight: 720 lb
Max speed: 123 mph
Cruise speed: 105 mph
Stall speed: 50 mph
Range: 355 miles
Ceiling: 15,000′
All Aero 