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At about 30,000 feet, the air is thinner and the aircraft has little resistance at that height, because of that little resistance the plane can fly much further

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13y ago
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14y ago

Jet planes fly from 15000 feet to 40000 feet.The world record for highest altitude was set by SR-71 at 85000 feet.

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11y ago

i don`t know you tell me

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Q: What altitude do jet planes fly why?
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