Definition of pitch angle in English:

pitch angle

noun

  • 1The angle of inclination from the horizontal or vertical, or with respect to some reference plane; the angle relating or corresponding to the pitch (in various contexts).

  • 2Aeronautics. The angle at which a propeller, rotor, or turbine blade is set with respect to the plane of rotation (the angle being measured between this plane and a straight line from one edge of the blade to the other in a direction perpendicular to its radius).

Origin

Mid 19th century; earliest use found in Macquorn Rankine (1820–1872), civil engineer and physicist. From pitch + angle.

Pronunciation

pitch angle

/ˈpɪtʃ aŋɡl/