Why jets create a jet stream?

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Answers:

I Lost my Pilots Licence, Now I need a new one.?

Were you referring to contrails? See below.

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Otherwise, yes, the jet stream is a wind pattern that exists in the upper atmosphere, but wasn't really observed, understood, or taken advantage of until the jet age. Hence, it was named the "jet stream".

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Aircraft Scanner?

Jets do NOT create the jetstream! The jetstream is a very fast air current in the upper atmosphere. It was always there, even before airplanes! jeezzzzzzzz

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Are there cameras in aircraft lavatories?

They don't you twit.

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Where can i find info on a NAS4401-8 bolt?

Here is an explanation of contrails: http://privatejetcharter.spaces.live.com...

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At what altitude does a boeing fly in the middle of the flight and why ?

Maybe you are confused with your vocabulary. The jet stream is a wind current found in the upper atmosphere...has nothing to do with jets, other than the similar speeds involved.

why do pilots say roger?

The white trails that come off most airplanes, not just jets, are called contrails. Contrails are actually clouds, if you can believe it. The air flowing across the wing heats up a little in relation to the air not skimming off the wing. This temperature difference causes the water vapor in the warmer air to condense, forming a cloud. As the air cools back to the temperature of the surrounding air, the cloud dissipates.

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Is there any place in the world where they can give speeding tickets to aircraft?

I'm assuming you mean to ask about the white stream of mist you see following a jet high up. This is a contrail, it's basically caused by the heat of the engine exhaust meeting the cold air . pretty much like a cars white smoke on a cold morning right after its started .

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Both answer seem right . Best possible answer?

A contrail is made by condensation

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how to make a toy airplane?

Yes i think you are refering to contrails have a look on the website below it is very good

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