lift-to-drag ratio
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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/drag ratio — The ratio of the coefficient of lift to the coefficient of drag of an airfoil at various angles of attack. It is a measure of the airfoil’s efficiency. The angle of attack that gives the best lift by drag ratio is the most efficient angle of… … Aviation dictionary
Lift-induced drag — In aerodynamics, lift induced drag, induced drag, vortex drag, or sometimes drag due to lift, is a drag force that occurs whenever a moving object redirects the airflow coming at it. This drag force occurs in airplanes due to wings or a lifting… … Wikipedia
lift-drag ratio — /lift drag /, Aeron. the ratio of the lift to the drag of an airfoil. [1915 20] * * * … Universalium
lift-drag ratio — /lift drag /, Aeron. the ratio of the lift to the drag of an airfoil. [1915 20] … Useful english dictionary
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
Drag (physics) — Shape and flow Form drag Skin friction 0% 100% 10% 90% … Wikipedia
lift wires — Wires installed between the wings of a biplane to support the wings and hold them in alignment against the forces of lift. Lift wires run from the inboard end of the lower wing to the interplane struts on the upper wing. See landing wires.… … Aviation dictionary
Glide ratio — Glide ratio, also called, Lift to drag ratio, glide number, or finesse, is an aviation term that refers to the distance an aircraft will move forward for any given amount of lost altitude (the cotangent of the downward angle). Alternatively it is … Wikipedia
glide ratio — noun a) The instantaneous ratio of rate of fall to horizontal speed for a glider. b) The maximum ratio of rate of fall to horizontal speed that a … Wiktionary
