2006-06-25 16:09:49 · 10 answers · asked by kmuralinh 3 in Science & Mathematics ➔ Other - Science
And the true answer is...........
Because that range of altitudes is where the airline companies can make the greatest profit!
2006-06-25 16:31:42 · answer #1 · answered by Steve 7 · 1⤊ 0⤋
The lower border: no collision to any mountain
A jet plane flies the fastest in the thinnest air, but there must be enough oxygene. That is why there is an upper limit
2006-06-25 16:53:02 · answer #2 · answered by Thermo 6 · 0⤊ 0⤋
The fast planes fly high were there is less air to create drag and to increase speed and save fuel.
2006-06-25 16:17:57 · answer #3 · answered by Kenneth H 5 · 0⤊ 0⤋
for one planes flying in differnt directions fly at different altutudes to avoid mid air collisions and the FAA estblished the altitude requirments years ago
2006-06-25 16:16:18 · answer #4 · answered by don A 3 · 0⤊ 0⤋
Because of the altitude of the Jet/ Gulf Steam?
2006-06-25 16:20:11 · answer #5 · answered by Anonymous · 0⤊ 0⤋
flying too low uses more fuel and generates too much noise
flying too high is difficult b/c sparse air provides less lift for the wings and less oxygen for the engines.
2006-06-25 16:12:19 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Because the higher up you are, the shorter the time it takes to get somewhere.
2006-06-25 16:13:13 · answer #7 · answered by Jen 3 · 0⤊ 0⤋
Thinner air, less friction.
2006-06-25 16:13:00 · answer #8 · answered by Marky-Mark! 5 · 0⤊ 0⤋
if you cant spell plane I would recommend not studying information about them.
2006-06-25 16:12:56 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Why did you not use spellcheck before you submitted your question.
2006-06-25 16:15:36 · answer #10 · answered by Anonymous · 0⤊ 0⤋