inclination angle

Inclination in general is the angle between a reference plane and another plane or axis of direction. The axial tilt is expressed as the angle made by the planet's axis and a line drawn through the planet's center perpendicular to the orbital plane.
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See pitch angle. 1/12/79

Angle formé par l'axe longitudinal d'un sous-marin ou aéronef et le plan horizontal. 1/12/79