the acute angle between the lateral axis of an aircraft or spacecraft and a horizontal plane.
- Angle of rib
angle of rib angle of rib n. The abrupt change in curvature of the external surface of a rib where the rib is bent in two directions and twisted along its axis. Also called costal angle.
- Angle of slide
the minimum slope, measured in degrees from the horizontal, at which loose solid material will start to slide or flow.
- Angle of stall
- Angle of torsion
angle of torsion angle of torsion n. The degree of rotation of a long bone along its axis or between two axes.