I do not see comercial airliners leave these trails behind. It's a little weird. It looks like these "planes" turn this on and off whenever they chose. I am not talking about any type of airshows.
2007-08-12 08:18:15 · 7 answers · asked by Kenneth P 1 in Society & Culture ➔ Mythology & Folklore
It is a function of how high they are. They are called contrails and are the moisture in the engines exhaust from the combustion of fuel condensing in the supercold air at high elevation.
2007-08-12 08:29:35 · answer #1 · answered by balloon buster 6 · 1⤊ 0⤋
Contrails or vapor trails are condensation trails and artificial cirrus clouds made by the exhaust of aircraft engines or wingtip vortices which precipitate a stream of tiny ice crystals in moist, frigid upper air. Being composed of water, the visible white streams are not, in and of themselves, air pollution. However, contrails generated by engine exhaust are inevitably linked with typical fuel combustion pollutants. Contrails might also be considered visual pollution.
2007-08-12 15:38:36 · answer #2 · answered by powerinknowledge 2 · 1⤊ 0⤋
Contrails are condensed water vapor and ice crystals that form in a planes wake. It only control is the natural temperature layers the plane passes through.
2007-08-12 15:31:03 · answer #3 · answered by Terry 7 · 2⤊ 0⤋
An interesting bit of trivia about contrails. You can (kind of) predict the weather by them. The longer the contrail is the more humid the air is and the more likely that there will be rain soon.
2007-08-12 17:40:47 · answer #4 · answered by since you asked 6 · 1⤊ 0⤋
Contrail is good, but if you like conspiracies, then they are chemtrails. Chemicals that are sprayed onto the public to see what effects they have.
2007-08-12 16:37:27 · answer #5 · answered by dark bubble 7 · 0⤊ 0⤋
Vapor trails.
2007-08-12 15:32:09 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Air pollution plain and simple.
2007-08-12 22:05:34 · answer #7 · answered by John himself 6 · 0⤊ 0⤋