General characteristics:

• Crew: 4
• Capacity: 50 passengers
• Length: 76 ft 4 in (23.27 m)
• Wingspan: 108 ft 1 in (32.9 m)
• Height: 21 ft 9 in (6.63 m)
• Wing area: 1,360 ft² (126.8 m²)
• Empty weight: 32,400 lb (14,700 kg)
• Max takeoff weight: 48,000 lb (22,000 kg)
• Powerplant: 2× Pratt & Whitney R-2800-51 two-row 18-cylinder radial engines, 2,000 hp (1,500 kW) each

Performance:

• Maximum speed: 269 mph (234 knots, 433 km/h)
• Cruise speed: 173 mph (278 km/h)
• Range: 2,950 mi (2,560 nm, 4,750 km)
• Service ceiling: 27,600 ft (8,410 m)
• Rate of climb: 1,300 ft/min (6.6 m/s)
• Max wing loading: 35 lb/ft² (170 kg/m²)
• Minimum power/mass: 0.083 hp/lb (140 W/kg)