chemtrails?

Question

why is this such a mystery? I heard that they dont know what is causing them. arent the engines doing chemtrails?
and yesterday I was an airplane that didnt left any chemtrails. its because it was more low?

*and yesterday I saw

typo

Answer 1

They are not called "chemtrails." That would imply that they are leaving chemicals behind. They are correctly called "contrails." I don't know the meaning of the word. They are formed based on the amount of water vapor present in the air. When the heat of the engine passes through the air, it will condense the water vapor and you will see a contrail. If their is insufficient vapor then you will not get a contrail.

Answer 2

Contrails (condensation trails) can be seen at any altitude
where conditions permit condensation. Most often seen at
high altitudes. I have seen them at ground level at my wing
tips. The wings cause a drop in air pressure and with it, a
drop in air temperature which causes water to condense out
of the air and becoming visible. For engine exhaust contrails,
the heat causes water in the air to change states twice the
carbon and other particulates in the exhaust facilitate the
process. High altitude contrails are visible longer because
they are ice crystals, it takes longer for them to return to the
state they were in before the jet passed.

Answer 3

Condensation trails. Shortened, contrails. Condensed water. When the air is cold enough, ice crystals form from the condensed moisture produced by the burning of hydrocarbon fuels, the ice is visible, thus contrails. Air is usually cold enough above 40,000 feet, above where the airliners fly. It's a pretty good guess that the plane leaving contrails is either private or military.

Answer 4

there called contrails and they come from the back of the engines it,s the heat exsaust from the engines that you see in the sky and disapate in a few hours or less depending on how high the aircraft is flying.oh by the way would you be instered is buying some beach front property i got for sale in nebraska .

Answer 5

Contrails you mean.
You have to be at a certain height to see 'em. And you have to be on the ground to see 'em. If you are flying at 37000 feet at 585 KTAS you can see the contrails right from your window seat!

Answer 6

Chemtrails? Do you mean contrails? This is where high pressure over the wing squeezes the moisture from the air, basically creating a stream of cloud that trails from the wingtip, where high pressure suddenly meets low pressure. In humid conditions, some race cars will actually have them form at the edges of the rear wing.

Answer 7

for more info go to http://educate-yourself.org/ct/

Answer 8

There is no such thing as "chemtrails". Suggest you get a life and stop believing everything you read.

Answer 9

You, sir, are either a moronic conspiratard or just an ignorant child. I'd be able to discern which, but your writing style is a very accurate reflection of you IQ. Go hang out with the Ninelevenists, the black helicopters are after you!