What aircraft can dump fuel?

For some aircraft types, the maximum allowable landing weight is substantially less than the aircraft's take-off weight. The Boeing 747, 777, and Airbus A380s are examples, and these three aircraft types do have fuel dumping capabilities. These are large, heavy aircraft, and fuel adds a significant amount of weight.



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For some aircraft types, the maximum allowable landing weight is substantially less than the aircraft's take-off weight. The Boeing 747, 777, and Airbus A380s are examples, and these three aircraft types do have fuel dumping capabilities.

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CBS News reported that, based on the expert opinion of a former Boeing 777 captain, Flight 89 would have likely dumped 15,000–20,000 US gallons (12,000–17,000 imp gal; 57,000–76,000 L) of fuel. Shortly after completing the fuel dump, the aircraft landed safely.

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Not all planes are capable of dumping fuel. Boeing's 747 and 777 both have the ability to jettison kerosine, as has the Airbus A380 and an A330. However, regional jets such as a Boeing 737 and Airbus A320 can not.

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Also, not all planes have the capability of dumping fuel. But big ones like the 747, 787, or A380 can release it from their wingtips.

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A C-172 cannot dump fuel. As a guess, it's only useful for aircraft where the max landing weight is significantly lower than the max takeoff weight.

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#21271129. They circle to burn fuel like every other aircraft that can't dump fuel. If needs be & they must land heavy well then the aircraft may be damaged & a runway/airport closure could follow.

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Military and civilian aircraft at times dis- charge fuel in flight to facilitate a safe landing.

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