Painting of the NC-4 flying over the icy North AtlanticData from Holmes, 2005. p 63.
General characteristics
Crew: six
Length: 68 ft 3 in (20.8 m)
Wingspan: 126 ft 0 in (38.40 m)
Height: 24 ft 6 in (7.49 m)
Wing area: 2,380 ft² (221 m²)
Empty weight: 15,874 lb (7,260 kg)
Loaded weight: 21,500 lb (9,772 kg)
Max takeoff weight: 27,386 lb (12,422 kg)
Powerplant: 4× Liberty L-12 400 hp (300 kW) water-cooled V-12 engines, 400 hp (298 kW) each
Performance
Maximum speed: 90 mph (78 kn, 152 km/h)
Stall speed: 62 mph (54 kn, 100 km/h)
Range: 1,470 mi (1,278 nmi, 2,352 km)
Service ceiling: 4,500 ft (1,370 m)
Wing loading: 11.5 lb/ft² (56.3 kg/m²)
Power/mass: 0.06 hp/lb (10 W/kg)
Armament
