Passenger Jet Releasing Fuel Mid-Air ?

Question

For some reasons, if a passenger jet needs to release its fuel (tonnes and tonnes) in mid-air, the fuel will first evoporate due to pressure and its speed of releasing it. But eventually it will go somewhere. where all the released fuel go ??? Is this considered air polution ?

Answer 1

Planes can't release their fuel in mid-air. That's why when you see a plane on t.v. that needs to land due to a malfunction (like that JetBlue flight a while back) they have to circle the airport for a while to burn the fuel off.

I know the pilots can't release the fuel, but I'm not sure if you can "cross wires" and make a fuel dump (referencing to Harrison Ford in Air Force 1.)

Answer 2

There have been some military dump tests conducted that have indicated that occasionally complete vaporization of the fuel may not occur if dumped below 5000 feet AGL. Other data has indicated that the fuel will completely vaporize if dumped at altitudes of 3/4000 feet AGL. It appears that if the fuel is dumped above 2000 feet AGL, there is a little risk to the environment. The recommendation would be to use the most conservative altitude of 5-8000 feet or above . The differences in results can be contributed to such as nozzle dispersion characteristics, the effects of aircraft wake and local atmospheric conditions (Normal ATC vertical separation is at least 4000 ft because it is basically stated that fuel completely vaporizes within 2000-3000 ft).

Answer 3

environment pollution --- it does effect our surroundings that's why airports have to be a certain distance from suburbs, only so many airports in an area ---- the effects are gradual but they are there.
Even now they are working on ways to make jet fuel safer and less costly --- Usually fuel is dumped to accommodate landings - things on a plane are weighed and calculations are done for take offs and landings.

Answer 4

Have you heard of the Swiss Air flight 111.Before trying to land in Halifax do to the smoke in the cockpit he was directed over the water and instructed to dump fuel there.So they do dump fuel but over the water only. I think

Answer 5

No, airplanes can't be controlled remotely by technique of ATC or by technique of absolutely everyone else. it relatively is technically and theoretically possible to construct a commercial airliner this is or could be controlled remotely from the floor; the protection rigidity makes use of distant-controlled airplanes each and all of the time. yet there are no clean advantages to such an plane with comprehend to terrorism, because of the fact terrorists would desire to apply the comparable distant-administration approaches because of the fact the valid controllers would use, and to that end would desire to "hijack" the plane from the floor if a floor-administration equipment existed. merely shifting the administration from plane to floor does not eliminate a terrorist danger, it merely strikes it from the plane to the floor. The approaches utilized by technique of the protection rigidity to circumvent interference with floor administration, which comprise encryption, are no longer useful for civilian use through a lot wider dissemination of the technologies and keys required. ultimately, terrorist activities and hijacks are so surprisingly uncommon that there is surely no justification for arising an costly and mistake-providers distant administration equipment for airliners. the present equipment with pilots on board the plane is safer, extra much less costly, and extra sturdy universal. somewhat, terrorists and hijackers are so uncommon that it is confusing to work out any purpose justification for any countermeasures in any respect in plane; the few that are used are many times there usually for psychological reassurance and might't be justified on an purpose danger assessment foundation. in short, there are an mind-blowing style of problems with the belief and no actual advantages, so it could no longer return to bypass.

Answer 6

Technically it could be considered air pollution

Which is why it is only done when absoultely necessary