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It is because the higher up the plane is, the lower the air pressure. When the air pressure is lower, there are less air molecules, resulting in less friction. Therefore it uses less fuel.
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What altitude must jets fly at to be silent?
35000
How high do long distance passenger jets fly?
They usually fly at an altitude of 30,000 to 35,000 feet, to avoid bad weather.
What elevation do airplanes fly?
Most prop planes fly any where from 1,000-5,000 ft. Airliners usually fly from 10,000-20,000 ft. Military jets fly at pretty much any altitude
What altitude do jets fly at?
30,000 TO 35,OOO FEET ==Addendum== The above answer applies to modern commercial type jets. Smaller business jets can easily cruise in the 45,000 to 50,000 feet range. The Concord cruised at around 55,000 feet with a maximum cruise altitude of 60,000 feet. Military jets, of course, operate at various altitudes depending on design mission.
What is cruise altitude for jets?
33000 feet
Did Harriet Quimby fly jets or planes?
jets
Why do jets fly faster the higher they fly?
Because the higher the altitude, the thinner the air, so the less work is needed by the engines. Sometimes there is also strong tailwinds which will speed it up. Also, this burns less fuel.
Do jets fly in the stratosphere?
No
How high do military jets fly?
Military aircrafts fly the same height as the commercial airplanes do. The cruising altitude maybe 30000 feet to 45000 feet. Planes like SR-71 have gone upto the maximum of 85,000 feet.
How far can you see from an airplane at 32000 feet?
about 357 km or 222 miles depending on the visual acuity.
What is the average altitude a helicopter may fly at?
Helicopters fly somewhat close to the ground. They fly near the troposphere. They fly at a lower altitude than planes.
Why do jets fly?
they have wings and engines
