How much fuel does an aircraft burn on taxi?

The amount of fuel an aircraft burns during taxi depends on several factors, including the aircraft's weight, engine type, taxi time, and routing. Generally, aircraft engines are most fuel-efficient during idle or low-power settings, but taxi operations can still consume a significant amount of fuel due to the need for increased power for maneuvering, braking, and maintaining a safe speed.

On average, a large commercial airliner (e.g., Boeing 747 or Airbus A380) can burn around 100 to 150 kilograms (220 to 330 pounds) of fuel per hour during taxi operations. Smaller aircraft, such as regional jets or business jets, may burn around 25 to 50 kilograms (55 to 110 pounds) of fuel per hour while taxiing. These figures are approximate and can vary depending on specific aircraft types and operating conditions.

To minimize fuel consumption during taxi, airlines employ various strategies, such as optimizing taxi routes to reduce the distance traveled on the ground, using efficient taxi procedures to reduce engine power requirements, and employing advanced ground support equipment to expedite the taxi process. Additionally, some airports have implemented initiatives such as continuous descent approaches and idle thrust taxiing to further reduce fuel burn and emissions during taxi operations.