Do planes get more efficient the higher they fly?



  1. 0 Votes

    Yes, turbo-drag from passenger jet turbo engines decreases with height due to the atmosphere being less dense. This would make flying and fuel usage more efficient. It is important to remember that planes cannot fly too high into the atmosphere, where the air would be too thin (not enough oxygen) for the engines to run. Passenger jet engines need a certain amount of oxygen molecules per area to function properly.

  2. 0 Votes

    Actually, under George W. Bush FAA allowed planes to fly at a much lower altitudes because so much more fuel is used to fly planes at higher elevations. Whether or not the planes are more efficient at higher heights, I don’t know. But I do know that getting up to higher altitudes uses significantly more fuel. It’s probably one of the most environmentally-freindly things Bush did. 

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