I hope I convey my point probably, but why do planes go so many thousands of feet in the air? Is it faster that way, or could they achieve similar flight times at a lower altitude?
Does it have something to do with the curvature of the earth?
In: Engineering
It’s faster because there’s less air resistance but since the diameter is about 12.740 km, adding 10 km more wont change the curvature almost at all. So commercial planes can fly farther using less fuel. Other types of airplanes cruise at different altitudes and speeds.
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