zero-lift angle


zero-lift angle
The angle of attack at which an airfoil does not produce any lift. Its value is generally less than zero unless the airfoil is symmetrical.
Pressure distribution on an airfoil at the angle for zero lift (–3°).

Aviation dictionary. 2014.

Look at other dictionaries:

  • zero-lift angle — ˈ ̷ ̷(ˌ) ̷ ̷ˌ ̷ ̷ noun : the angle of attack of an airfoil when the lift is zero …   Useful english dictionary

  • angle of zero lift — zero lift angle …   Useful english dictionary

  • zero-lift chord — A chord taken through the trailing edge of an airfoil in the direction of the relative wind when the airfoil is at a zero lift angle of attack. See zero lift angle …   Aviation dictionary

  • zero-lift drag — The drag when an aircraft is flying at the zero lift angle of attack …   Aviation dictionary

  • Zero lift axis — When symmetric aerofoils are moving parallel to the chord line of the aerofoil, zero lift is generated. However, when cambered aerofoils are moving parallel to the chord line, lift is generated. (See diagram at right.)A cambered aerofoil… …   Wikipedia

  • no-lift angle — The angle between the chord of an airfoil and the relative wind that caused the airfoil to produce no lift. The no lift direction is the direction of airflow relative to an airfoil section or wing for which lift would be zero on that section of… …   Aviation dictionary

  • Angle of attack — In this diagram, the black lines represent the flow of a fluid around a two dimensional airfoil shape. The angle α is the angle of attack. Angle of attack (AOA, α, Greek letter alpha) is a term used in fluid dynamics to describe the angle between …   Wikipedia

  • Lift coefficient — The lift coefficient ( or ) is a dimensionless coefficient that relates the lift generated by a lifting body, the dynamic pressure of the fluid flow around the body, and a reference area associated with the body. A lifting body is a foil or a… …   Wikipedia

  • Lift-to-drag ratio — In aerodynamics, the lift to drag ratio, or L/D ratio ( ell over dee in the US, ell dee in the UK), is the amount of lift generated by a wing or vehicle, divided by the drag it creates by moving through the air. A higher or more favorable L/D… …   Wikipedia

  • Lift (force) — For other uses, see Lift. Boeing 747 8F landing A fluid flowing past the surface of a body exerts a surface force on it. Lift is the component of this force that is perpendicular to the …   Wikipedia


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