• Crew: 6-8 (pilot, copilot, radio operator, engineer, and 2-4 flight attendants)
• Capacity: 60-81 passengers
• Length: 97 ft 4 in (29.66 m)
• Wingspan: 123 ft (37.49 m)
• Height: 22 ft 5 in (6.83 m)
• Wing area: 1,650 sq ft (153.29 sq m)
• Empty weight: 56,590 lbs (25,669 kg)
• Max. takeoff weight: 107,000 lbs (48,534 kg)
• Powerplant: 4 × Wright R-3350-749C18BD-1 radial engines, 2,500 hp (1,864 kW) each
• Propellers: 4 propellor

Performance

• Cruise speed: 345 mph (555 km/h)
• Range: 4,995 mi w/maximum fuel load 
  2,600 mi w/maximum payload (8,038 km w/maximum fuel load 
  4,184 km w/maximum payload)
• Service ceiling: 24,100 ft (7345 m)