history:At what altitude do airliners fly on long-distance flights? | globalquiz.org

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added by globalquiz.org Feb. 16, 2014, 9:59 p.m.

At what altitude do airliners fly on long-distance flights?

approx 10,000 ft

approx 20,000 ft

approx 35,000 ft

approx 50,000 ft

Airplanes fly at high altitudes because of the reduction in drag, and to get into the jet streams. The Polar Jet stream ranges from 23,000 ft to 40,000 ft. The subtropical jet stream ranges from 33,0000 ft to 50,000 ft.

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