The C-5 Galaxy Has A Wingspan of 222 feet 8 Inches
47. It’s total wingspan is 222 feet 8 inches. that wing span is almost the same length of the aircraft front to back. Part of the reason for such a long wing span is to house all 12 fuel tanks that carry over fifty thousand gallons of fuel. With that much fuel and the large engines, we could see why you would need such large wings.