Aviation

Aviation

Dealing with vehicles or machines used in flight or propulsion through the air.

14Categories 89331Terms

Add a new term

Contributors in Aviation

Become a Contributors

Aviation > Airplane flying

leading edge flap

Aviation; Airplane flying

A portion of the leading edge of an airplane wing that folds downward to increase the camber, lift, and drag of the wing. The leading-edge flaps are extended for takeoffs and ...

licensed empty weight

Aviation; Airplane flying

The empty weight that consists of the airframe, engine(s), unusable fuel, and undrainable oil plus standard and optional equipment as specified in the equipment list. Some ...

lift

Aviation; Airplane flying

One of the four main forces acting on an aircraft. On a fixed-wing aircraft, an upward force created by the effect of airflow as it passes over and under the wing.

lift coefficient

Aviation; Airplane flying

A coefficient representing the lift of a given airfoil. Lift coefficient is obtained by dividing the lift by the free-stream dynamic pressure and the representative area under ...

lift/drag ratio

Aviation; Airplane flying

The efficiency of an airfoil section. It is the ratio of the coefficient of lift to the coefficient of drag for any given angle of attack.

lift-off

Aviation; Airplane flying

The act of becoming airborne as a result of the wings lifting the airplane off the ground, or the pilot rotating the nose up, increasing the angle of attack to start a climb.