One reason that planes cruise above the clouds is so they can fly fast. Most often, commercial airplanes fly anywhere between 30,000 and 42,000 feet in the air, The higher airplanes climb, the thinner the air gets, and the more efficiently they can fly because of less resistance in the atmosphere. The main reason is fuel efficiency. Put simply, airplanes use less fuel in higher altitudes where the air is thinner, With these larger jets, when they take off from airports, their first job is essentially to get out, and get as high as possible as quickly as possible. increasing the efficiency and saving them money at the same time.
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