The US military operates some of the largest and most powerful aircraft in the world. These machines are designed for combat, global transport, and refueling missions, and they burn massive amounts of jet fuel to do their job. Below are the top five fuel-hungry aircraft and how much they cost to operate per hour.
Boeing B-52 Stratofortress
The B-52 is a Cold War era bomber that remains in active service. With eight jet engines, it consumes about 3,200 gallons of fuel per hour. At an average military fuel cost of $3.50 per gallon, this equals roughly $11,200 per hour in fuel expenses.
Lockheed C-5M Super Galaxy
The C-5M is one of the largest transport aircraft ever built. It can carry tanks, helicopters, and massive cargo loads. To stay in the air it burns about 3,000 gallons per hour, costing the Air Force around $10,500 for every flight hour.
Boeing KC-135 Stratotanker
The KC-135 is a refueling aircraft that allows fighters and bombers to stay airborne longer. While it carries tens of thousands of gallons of fuel for other planes, it also consumes about 2,700 gallons per hour itself. That equals around $9,450 per hour in fuel costs.
Lockheed C-17 Globemaster III
The C-17 is the main airlifter of the US military. It is smaller than the C-5M but still fuel-hungry, burning about 1,700 gallons per hour. At $3.50 per gallon, that works out to about $6,000 for every hour in the air.
Sikorsky CH-53K King Stallion
The CH-53K is the newest and most powerful helicopter in US service. It is used for heavy lifting and burns about 550 gallons per hour. This costs about $1,925 per hour in fuel.
Fuel consumption and cost per hour
| Aircraft | Type | Gallons per hour | Cost per hour |
|---|---|---|---|
| B-52 Stratofortress | Strategic bomber | ~3,200 | ~$11,200 |
| C-5M Super Galaxy | Transport aircraft | ~3,000 | ~$10,500 |
| KC-135 Stratotanker | Aerial refueling tanker | ~2,700 | ~$9,450 |
| C-17 Globemaster III | Transport aircraft | ~1,700 | ~$6,000 |
| CH-53K King Stallion | Heavy-lift helicopter | ~550 | ~$1,925 |
Keeping these aircraft ready for global missions is not cheap. A B-52 bomber on a 10-hour mission burns more than 30,000 gallons of fuel, costing over $110,000 in fuel alone. Even the CH-53K helicopter costs nearly $2,000 per hour just for fuel. These numbers show how much it takes to power the reach of the US military.
