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Jet Fuel Evaporates When Dumped in Midair. Some people might be concerned that dumped jet fuel will land on them or their home. When dumped in midair, however, jet fuel evaporates into the air so that little if any hits the ground. Emergency Situations Only. Fuel dumping isn’t a normal procedure performed by airlines. It’s typically done only in emergency situations when an airplane needs to land as soon as possible. If a passenger onboard is experiencing a medical emergency, for example, the airline may instruct the pilot to change course to Jet Planes Fly In 90 the nearest available airport while dumping the pla. Not all planes are capable of dumping fuel, but those that can do it for a number of reasons. Photo: iStock. Share.  Boeing's and both have the ability to jettison kerosine, as has the Airbus A and an A However, regional jets such as a Boeing and Airbus A can not. "These smaller jets must circle or, if need be, land overweight," says Smith. "For some planes, landing and takeoff limits are the same, in which case it doesn't matter." The Telegraph, London. Fuel dumping in jet civil aviation, as opposed to emergency landing, remains a real mystery as to why would be required to waste good fuel. The great ATP concerns in flight were fuel, fuel and more fuel. Jetliners can’t get far without.  He quoted an example of an air traffic controller who quit his job after he vectored an aircraft over the sea to dump fuel, which then exploded mid air. Had he been allowed to vector it to the nearest airport, he went on record saying he believes everyone still would've been alive. However, you tend to find that once you declare a mayday, you can pretty much do whatever you want in the name of flight safety, if it is reasonable. Not too long ago it made the news of an aircraft that dumped its fuel over a children's school playground. Planes are designed to land below certain weights. That can be costly for airlines to fix. If an airliner had a light passenger load and got a big fuel efficiency boost from riding the jet stream for a few hours, even do jet planes dump fuel vector routine flight could leave a plane slightly overweight for landing. In Januarya Delta airlines plane made headlines for dumping fuel without clearance, and without following the well-established safety guidelines. The manufacturers consider this in their design of an aircraft, so by the time a plane reaches its destination, it'll be light enough to land safely. Fuel jettisoning systems can dump thousands of pounds a second. Emergency medical workers treated about 60 adults and children vecotr minor injuries such as skin irritation and breathing problems at six schools, though all of the patients declined to be transported to a hospital.

So, in that case that's when you would dump fuel so that you can lose weight quickly. Narrator: If the pilot has a little more time or doesn't have the capacity to dump fuel like in a lot of smaller crafts, they might dirty up the plane, this means purposefully creating drag and flying around in circles in order to burn off the excess fuel.

But if a passenger is critical, like the woman from , they might not have time for that. Fuel jettisoning systems can dump thousands of pounds a second.

Most can get a plane back down to its max landing weight in 15 minutes or less, and it's usually as easy as flipping a switch in the cockpit. Most systems are a series of pumps and valves that divert the fuel to the tips of the wings.

The fuel streams behind the plane in what looks like contrails and yes, there is a fail-safe in place to stop the pilot from expelling all the fuel at once. But it's not just a pilot's judgment that decides when and how fuel gets dumped.

The Federal Aviation Administration has a handful of regulations in place: the plane has to be at least 2, feet above Jay Jay Jet Planes Lyrics the highest obstacle along the route, at least five miles from any other aircraft and away from populated areas and bodies of water whenever possible.

But aside from this page of FAA policy, that's about it when it comes to regulations. Dumping fuel into the atmosphere isn't free of consequences, but the Environmental Protection Agency just isn't worried about it.

It regards the practice as exceedingly rare and leans into the fact that airlines don't promote it because it's a waste of money. Brickhouse: If we get to a point where we're seeing more aircraft with the capability to dump fuel and we're seeing more aircraft dumping fuel and maybe not from an emergency point of view, then maybe yes, that would be something that the EPA would need to look into.

Narrator: British Airways estimated in that only. If that number still holds up today, we're looking at almost two million gallons dumped in by U. Dumped jet fuel is supposed to evaporate before it hits the earth, but even Boeing has said that "Even though fuel is vaporized, "it is still suspended in the atmosphere.

The pilot quickly sought to return the jet, a Boeing , to the runway. The Federal Aviation Administration is investigating the fuel dump, which fell over at least a five-mile swath of the Los Angeles area, including on a school playground where children were playing, officials said. The episode raised questions about why the plane would be emptying its tanks over a populated area.

Here are some answers. For that reason, passenger planes generally need to be much lighter when they land than when they take off — sometimes more than , pounds lighter. Ideally, the plane would burn enough fuel during its trip to arrive at the destination airport easily underweight.

But when a plane has to make an emergency landing, either by returning to its departure airport or diverting to a nearby runway, it may not have yet burned enough jet fuel to properly lower its weight.

If the plane is high enough — at least 5, feet above the ground — the jettisoned fuel will turn to vapor before reaching the ground, according to Boeing.

Federal regulations do allow dumps at lower altitudes: The F. Aviation experts said it is always best to drop fuel from a higher altitude or over the sea rather than neighborhoods and schools.

When aircraft dump fuel they release thousands of gallons of aircraft fuel , or kerosene, into the atmosphere. Usually, the fuel evaporates before it reaches the ground. However, this is only the case if the aircraft is flying Jet Planes Fly In Which Layer Zero high enough.

As such, pilots will try to dump the fuel at higher elevations and typically try to avoid dumping fuel over populated areas just in case some of the kerosene does reach the ground. No, not all aircraft can dump fuel. On the other hand, Federal Aviation Regulations require certain aircraft, like the Boeing for instance, to have a fuel jettison system. The same holds true for Airbus aircraft; the Airbus A and A can dump fuel, while the A cannot.

Federal Aviation Regulations have specific requirements regarding the dumping of fuel and, the other option, overweight landings.

After all, aircraft dump fuel to avoid overweight landings as these can put enormous stress on the airframe. Aircraft use their fuel jettison system to dump fuel.

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