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by raylrodr on April 14th, 2009
Those spiraling trails of vapor are called "wing tip vortices". They are caused by the compression of air rolling off the wingtips. What you see is water vapor just prior to condensing into water.
by SkyClad on April 14th, 2009
Water vapor, from the moisture in the air, as the air pressure changes during landings.
by CaptainHarley adores his life penguin on April 14th, 2009
I would have said that it's condensation coming off the wings after a descent from a higher, colder altitute. I will, however, defer to those with a more intimate knowledge of airline operating procedure.
by john pennington on April 14th, 2009
Thats not smoke, thats jet fuel being dumped before landing.
It lowers the possibility of a fire, should the plane crash upon touching down.
At what altitude do you need FAA permission?
by Answerbag Staff on April 20th, 2011
| 1 person likes this
Are crochet needles allowed on airplanes?
by Answerbag Staff on April 20th, 2011
| 1 person likes this
How long is the flight from china to san diego?
by Answerbag Staff on April 20th, 2011
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At 1350 mph, how would one determine the fuel consumtion ratio of a Concord SST?
by Anonymous on May 8th, 2011
| 1 person likes this
What is the weight of a gallon of TS-1 jet fuel?
by losttoday on January 20th, 2011
| 1 person likes this
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