When the air is thinner, it's more difficult for the plane's wings to produce as much lift, and the engine or engines cannot produce as much power. People experience the same thing while hiking or running up hill in the mountains. They experience a shortness of breath much more quickly than they would at sea level.

Another factor that affects the airplane's performance is the weight of the airplane itself. For an airplane, high temperatures, high altitudes, and being heavier, i.e., carrying more fuel or cargo, means that an airplane's takeoff and landing distances are longer and it cannot climb as well. That's why pilots must figure their takeoff distances based on airport elevation, temperature, and the weight of the plane.

QUESTIONS - BACK

Please send any comments to:
Curator: Tom.Benson@grc.nasa.gov
Responsible Official: Kathy.Zona@grc.nasa.gov