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s0zik28: 5 months ago via Android | Last edited at 7:50AM on 12/30/2012

why do some jets leave huge lines across the sky?

the sky looks so blue when all of a sudden there's white lines running over my head !

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Answer 1

Tony737: 5 months ago via iPhone

They're just contrails, the engines are blasting out hot air but at high altitudes the air is very cold, it's kinda like when you can see your breath when it's cold outside.

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Answer 2

RogerAnglin: 5 months ago

it's called a condensation trail... they are high enough for the exhaust to do so

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Tony737: 5 months ago via iPhone

Correct sir

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RogerAnglin: 5 months ago

Thanks Tony !!

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Answer 3

rajaakhtar: 5 months ago

it is the gas that it ejects

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Tony737: 5 months ago via iPhone

Incorrect

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rajaakhtar: 5 months ago

Mr. Tony737, Isn't air a gas ?

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Answer 4

xXnick21: 5 months ago via iPhone

They are called contrails. It's the water vapor left over from the engine exhaust I believe.

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Tony737: 5 months ago via iPhone

Yes, mixing with cold air

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Answer 5

Funselin: 5 months ago via Android

the lines are made of smoke. jets burn energy which makes smoke. if jets flew in the same place all the time probably there would be a big group of smoke in that spot. but since the jet moves very fast the smoke makes huge lines.

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Tony737: 5 months ago via iPhone

Incorrect

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Answer 6

redslider: 5 months ago via iPhone

It's condensation, they r called con-trails

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Tony737: 5 months ago via iPhone

Correct

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Answer 7