Do planes still dump fuel before landing?

Airlines find that fuel dumping can actually be cheaper than not dumping in certain circumstances. But it's not something pilots do on a routine basis. We spoke with Alison Duquette, spokesperson for the Federal Aviation Administration (FAA), who assured us that it doesn't happen very often.



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Fuel dumping (or a fuel jettison) is a procedure used by aircraft in certain emergency situations before a return to the airport shortly after takeoff, or before landing short of the intended destination (emergency landing) to reduce the aircraft's weight.

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Area and flight level Specific areas have been designated where fuel dumping is allowed to avoid damage or harm where the fuel may drop; generally speaking, this is above seas or unpopulated areas above land.

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If fuel dumping is ever required (a very rare thing) - it's usually dumped over the sea or in unpopulated areas, and above 5000' so it completely evaporated and does not hit the ground.

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It would seem strange that pilots would purposefully dump fuel from their aircraft at a time when fuel prices have skyrocketed. What's more bizarre is that they do it in the air while flying. Tossing fuel into the air is a safe procedure for a good reason. Additionally, it is not as wasteful as it seems.

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The Gimli Glider incident occurred 40 years ago when an Air Canada Boeing 767 ran out of fuel at 41,000 feet, but the pilots successfully glided the plane to a former airfield turned race track for a safe landing.

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By contrast, aircraft are almost never fully fulled. Only in very rare cases is the tank full.

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Typically in the case of an emergency landing, the plane will be landing somewhere well short of its destination. If it has not been flying long enough to burn off enough fuel to get below the maximum landing weight, they need to dump fuel in order to land safely.

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Fuel dumping (or a fuel jettison) is a procedure used by aircraft in certain emergency situations before a return to the airport shortly after takeoff, or before landing short of the intended destination (emergency landing) to reduce the aircraft's weight.

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A pilot will choose to dump fuel only on very rare occasions. Brickhouse: Unless you have a medical emergency on board, someone is dying, you don't really have time to fly around and burn fuel. So, in that case that's when you would dump fuel so that you can lose weight quickly.

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The maximum landing weight (MLW) is the maximum aircraft gross weight due to design or operational limitations at which an aircraft is permitted to land. The MLW is set in order to ensure safe landings; if an aircraft weighs too heavy during touchdown, it may suffer structural damage or even break apart upon landing.

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Can a wide body airliner land with a full fuel tank? Yes! But it is safer to land an aircraft below its published MLW.

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This weighs ~400,000 lbs; nearly as much as the empty plane itself.

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Commercial airliners, such as the Boeing 747 and the Airbus A380, have a range of around 8,000 to 8,500 nautical miles. This means that they can fly for up to 20 hours without refueling, allowing them to travel long distances across the globe.

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Pilots are trained to shut outer air vents to prevent water from seeping in and aim for calm waters. They will do their best to keep the plane parallel to the waves and try to land tail down for a smoother landing. This is also to prevent the plane from breaking apart and ensure it will float.

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The aircraft flares just before touching down. It descends with a constant velocity, and just before touching down pulls the nose up to reduce the descent. This results in a higher angle of attack, more lift, and a vertical deceleration of the airplane.

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In terms of transporting cargo, container ships are by far the most energy efficient form of transport compared to trains, trucks, and planes.

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