What is defined as the angle to the left or right of an airplane's direction of motion?

Yaw angle is the correct term used to describe the angle to the left or right of an airplane's direction of motion. In aviation, yaw refers to the rotation of the aircraft around its vertical axis, which allows it to turn left or right. This is a crucial aspect of flight control, as adjusting the yaw angle helps in navigating and maintaining the desired flight path.

The other terms refer to different concepts in aviation:

• The pitch angle represents the angle of the aircraft's nose in relation to the horizon, which affects its vertical climb or descent.

• The roll angle refers to the tilt of the aircraft around its longitudinal axis, which is essential for banking and maneuvering during flight.

• Flight angle is not a standard aviation term and does not specifically refer to this directional movement.

Understanding yaw and its implications for aircraft navigation is vital for pilots and those studying aviation.