Angle of incidence



Also called incidence. Optics, Physics. the angle that a straight line, ray of light, etc., meeting a surface, makes with a normal to the surface at the point of meeting.
(on an airplane) the angle, usually fixed, between a wing or tail root chord and the axis of the fuselage.
Chiefly British, (def 1).
noun
the angle that a line or beam of radiation makes with the normal to the surface at the point of incidence
another name for angle of attack
Also called rigging angle of incidence. the angle between the chord line of an aircraft wing or tailplane and the aircraft’s longitudinal axis
angle of incidence
The angle formed by a ray or wave, as of light or sound, striking a surface and a line perpendicular to the surface at the point of impact.

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