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Questions tagged [fuel-dumping]

Fuel dumping is a procedure used by aircraft in certain emergency situations before a return to the airport shortly after take-off, or before landing short of its destination to reduce the landing weight.

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Planes returned to base after dumping fuel due toilet issues

A colleague of mine experienced this and I was astonished. Flying KLM from PVG to AMS a couple of hours into take off toilets became full. The pilot dumped fuel and returned to PVG. All passengers ...
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How much fuel gets dumped and why?

WRT Would the Aeroflot Flight 1492 have been able to dump its fuel first before landing?, I am wondering how much fuel gets dumped every year? gallons? litres? pounds? Also, is it only in unplanned ...
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Would the Aeroflot Flight 1492 have been able to dump its fuel first before landing?

In the recent Aeroflot Superjet 100 crash, it seems to me that (at least) the landing gear was spiked upwards, penetrating the fuel tanks, which might be one of the factors that lead to disaster. In ...
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What's the difference between “dumping” and “jettisoning” fuel? [duplicate]

There are some countries (Sweden, for example), they do not permit "dumping" fuel, only "jettisoning" procedures. Is there any difference according to the amount of fuel that will reach the ground? ...
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What are possible explanations for fuel being expelled in this video?

In another question, I asked about whether or not a fuel spill would be reportable or not. The answer was "no", because the aircraft was not in flight. What are the possible causes of the spill ...
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Fuel jettison in Top Gun, is there any reason to do this other than show-boating?

20 years of watching Top Gun and I only noticed this today, after almost an annual repeat! At 00:29 in this video, you can see what seems to be condensation swirling in the wake vortices. ...
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Can a wide body airliner land safely with a full fuel tank?

Can a commercial double-aisle jet aircraft (e.g., 777, A330) land safely with a full fuel tank (minus the fuel spent on taxing and takeoff)? Has that ever happened?
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What is the minimum altitude for dumping fuel?

In this question, a comment mentioned that if a 4-engine airliner suffers a 3-engine failure shortly after takeoff, the only way to stay aloft may be to dump fuel. What is the minimum altitude which ...
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Why isn't dumped fuel burned?

Fuel dumping seems to have a lot of restrictions, like the need to do it above a certain altitude and over water. It also has to end up somewhere, even if it vaporizes, which is less than desirable. ...
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What's the name and function of the tube-like thing?

I took a flight for a business travel and I saw something new for me on the wing. I highlighted that part in a red circle in the picture below. The aircraft is an Airbus A330-200. Can anyone here ...
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What is the difference between landing weight and end-of-mission weight?

Raymer says: Landing is much like taking off, only backwards!....Note that the aircraft weight for landing analysis is specified in the design requirements, and ranges from the takeoff value to ...
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Can small airplanes dump fuel during flight?

Can small airplanes, such as a Cessna 172, dump fuel during flight? My understanding is that large commercial passenger aircraft often have the capability to dump fuel during flight, as can many ...
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In an emergency situation just after take off, is fuel dumping useful?

Imagine a hypothetical scenario where a jet heavily loaded with fuel experiences more than one engine failures after $V_{1}$. Then I suppose that losing some weight would be beneficial since the ...
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What are the ways to burn fuel faster in case of emergency without fuel dumping system?

In many cases, the maximum landing weight of an aircraft is lower than the takeoff weight due to the amount of fuel it carries. While some aircraft have fuel dumping systems, others like the A320 ...
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Jettison and Dump fuel - Do they have separate meanings?

According to the definitions, is there any difference between Jettison and Dump fuel? Does one of them use a different procedure, or they are simply synonyms?
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What factors determine where an aircraft can dump fuel?

An aircraft flying over a densely populated area–far away from the sea and mountains–declares an emergency, request fuel dump, and a landing as soon as possible. How does an air traffic controller ...
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Can commercial aircraft dump luggage or cargo mid-air?

In a situation where the pilot realizes that weight of the aircraft is too high, can they dump luggage / cargo mid air, similar to dumping fuel?
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Do helicopters ever dump fuel before landing?

In my answer to this question about fuel dumping I included the following rhetorical question: Or if you're dumping fuel from a helicopter (does that ever happen?) it could hover over a tank on ...
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Why doesn't the 737 have a fuel dump nozzle?

I was watching a documentary on aircraft incidents which mentioned that the 737 does not have the facility to dump fuel. Instead they're required to fly in circles to burn off excess fuel in an ...
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Why does the F-111 sometimes squirt a giant fire plume behind it? (NOT afterburners!)

As seen in multiple pictures: First, this one, it appears the aircraft is spraying copious amounts of fuel into the exhaust! Surely this provides no thrust, not in the way an afterburner (which the ...
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How often does fuel dumping from planes in flight actually occur?

There are a couple of questions about the emergency procedure of fuel dumping, used to reduce the weight of airplanes to be able to land. This is certainly interesting, regarding environmental ...
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Is it possible to recover dumped fuel?

During emergencies pilots are authorised to dump fuel, but is there any way or method to recover the fuel that has been jettisoned?
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How is fuel dumping safe?

The answers to this this question make it clear how modern airliners dump fuel in the case of an emergency. As far as I understand, fuel dumping might be done to lower an aircraft's weight to the ...
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How is fuel dumped in aircraft?

I have heard incidents in which commercial aircraft are required to dump fuel in event of an emergency to avoid landing over maximum landing weight. What systems do aircraft have in place to dump fuel?...
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When are aircraft required to dump fuel for emergency landings?

I've heard that in a lot of instances a jet that is making an emergency landing is required to dump excess fuel. In a lot of instances this would make a lot of sense. For example, if the gear cannot ...