Data from Aerofiles 
General characteristics
Crew: 1
Capacity: 3 passengers
Length: 27 ft 0 in (8.23 m)
Wingspan: 39 ft 0 in (11.89 m)
Powerplant: 1 × Pratt & Whitney Wasp Junior 9-cyl.
air-cooled radial piston engine, 450 hp (340 kW)
Performance
Maximum speed: 160 mph (257 km/h; 139 kn)
Stall speed: 70 mph (113 km/h; 61 kn)
Data from Aerofiles 
General characteristics
Crew: 1
Capacity: 3 passengers
Length: 27 ft 0 in (8.23 m)
Wingspan: 39 ft 0 in (11.89 m)
Powerplant: 1 × Pratt & Whitney Wasp Junior 9-cyl. air-cooled radial piston engine, 450 hp (340 kW)
Performance
Maximum speed: 160 mph (257 km/h; 139 kn)
Stall speed: 70 mph (113 km/h; 61 kn)
Spartan 12W Executive