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.
- Angle of yaw
the acute angle between the longitudinal axis of an aircraft or spacecraft and a given reference direction, as viewed from above.
- Angle of view
the angle formed at a nodal point of a lens by the intersection of two lines drawn from the opposite ends of an image produced by the lens.
the formed by the line of flight of an aerial target and the line of sight on a gun of an attacking aircraft. the formed by the line of flight of an attacking aircraft and that of an aerial target.