Yaw axis

yaw axis
The imaginary vertical axis about which an aircraft yaws
ZULU
Greenwich Mean Time, also known as Universal Coordinated Time ...

Yaw Axis The airplane axis controlled by the rudder. Yaw is illustrated by hanging the airplane level by a wire located at the center of gravity. Left or right movement of the nose is the Yaw movement.

Yaw The yaw axis is stabilized through the sweep back of the wings. The swept planform, when yawed out of the relative wind, creates more lift on the advancing wing and also more drag, stabilizing the wing in yaw.

In the air, rudder is valuable for "yawing" the aircraft (rotating it on its vertical axis; also called the yaw axis) to a slightly different heading. As a general rule, use a few strokes of rudder for a heading change of 30 degrees or less.

In some airplanes, there is a lightly-damped Dutch roll mode, involving the yaw axis along with others, as discussed in section 10.6.1.
8.4  Helical Propwash ...

IZ / m (b / 2)2 = moment of inertia coefficient about the yaw axis
Cnß
= ...

While this sounds complicated, the effect is that if you have the model dialed in, and point the nose north, with a heading hold gyro on the yaw axis the model will continue to face north until you command it to yaw.

See also: Plane, Altitude, Aircraft, Flight, Dynamic