The C-5 Galaxy capability is staggering:
Cargo compartment: 270 passengers in the air-bus configuration, six transcontinental buses, two M1-A1 Abrams main battle tanks, seven UH-1 Huey helicopters, one US Army 74-ton mobile scissors bridge.
Fuel capacity: 12 integral fuel tanks hold 332,500 pounds of fuel, the equivalent of six railroad tankers.
The airplane is 247 feet long, 65 feet tall at the tail, with a wingspan of 222 feet 9 inches.