Do planes empty fuel before landing?

While fuel dumps don't happen every day, they're also not uncommon. Nor do they usually represent a major emergency. In fact if an aircraft is taking the time to dump fuel before landing, that's likely an indication that the issue forcing the plane to land is serious but not critical.



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While fuel dumps don't happen every day, they're also not uncommon. Nor do they usually represent a major emergency. In fact if an aircraft is taking the time to dump fuel before landing, that's likely an indication that the issue forcing the plane to land is serious but not critical.

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This is because landing can place additional strain on a jet. When a plane lands heavily, it can hit the ground too hard and damage itself. During an emergency, a jet may be forced to land earlier than anticipated. This is where fuel dumping comes into play.

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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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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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Flying boom – This system uses a rigid tube, named the boom, to connect the two aircraft. A dedicated operator directs the boom into a small opening on the recipient aircraft. The Air Force favors this system as the flying boom transfers fuel faster than the probe-and-drogue (6,000 lbs/min vs. 2,000 lbs/min).

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The most common reason is that there are no airstrips or airports on many of the small islands, so if a plane had to make an emergency landing, it would be difficult to find a place to land. Additionally, the Pacific Ocean is vast and remote, so if a plane were to go down, it would be very difficult to find.

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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 these cases, the airplane may arrive at the landing airport at a weight considerably above the maximum design landing weight. The pilot must then decide whether to reduce the weight prior to landing or land overweight. The weight can be reduced either by holding to burn off fuel or by jettisoning fuel.

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A modern Boeing 747 can fly about 15,000 km (9,500 miles) when it's flying at 900 kmh (550 mph). This means it can fly non stop for almost 16 hours!

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Believe it or not, an airplane's wings often contain a majority of the fuel the aircraft will use. Some planes also possess fuel tanks inside the aircraft's body; however, there are several benefits to placing fuel in the wings of an airplane.

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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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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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Why do airplanes so often catch fire on crashing? Because they are essentially flying gas tanks carrying well above 100,000 liters. Because jet engines are very, very hot.

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