C-5 Galaxy Capabilities and Spec's

As the Air Force’s largest airlifter, the
C-5 Galaxy can carry more cargo farther
distances than any other aircraft. With a payload
of six Mine Resistant Ambush Protected vehicles
(MRAPs) or up to five helicopters, the C-5 can haul
twice as much cargo as any other airlifter. (Except for the
Antonov 225 of course)

The C-5 entered operational service in 1970 and has
been a vital asset in every military operation since that time.
It has also been essential in humanitarian relief efforts.

Spec's

Crew: 8 typical (Pilot, first pilot, copilot, two flight engineers, three loadmasters)
4 minimum (Pilot, copilot, two flight engineers)
Payload: 270,000 lb (122,470 kg)
Length: 247 ft 1 in (75.31 m)
Wingspan: 222 ft 9 in (67.89 m)
Height: 65 ft 1 in (19.84 m)
Wing area: 6,200 ft2 (576 m2)
Empty weight: 380,000 lb (172,370 kg)
Loaded weight: 769,000 lb (348,800 kg)
Max takeoff weight: 840,000 lb (381,000 kg)
Power-plant: 4× General Electric TF39-GE-1C high-bypass turbofan, 43,000 lbf (190 kN) each

Maximum speed: Mach 0.79 (503 kn, 579 mph, 932 km/h)
Cruise speed: Mach 0.77
Range: 2,400 nmi (2,760 mi, 4,440 km) with a 263,200 lb payload
Service ceiling: 35,700 ft (10,600 m) with a 615,000 lb (279,000 kg) payload
Rate of climb: 1,800 ft/min (9.14 m/s)
Wing loading: 120 lb/ft2 (610 kg/m2)
Thrust/weight: 0.22
Takeoff roll: 8,400 ft (2,600 m)
Landing roll: 3,600 ft (1,100 m)
Fuel capacity: 51,150 US gal (193,600 l)