In flight mechanics, the yawing moment due to the roll rate refers to the rotational force or moment that is generated around the vertical axis of an aircraft (yaw axis) as a result of a change in the aircraft’s roll rate. This phenomenon is a consequence of the complex interactions between the aircraft’s aerodynamic surfaces, its geometry, and its motion.
- Yp” is the yawing moment due to the roll rate.
- “QS” represents the dynamic pressure (0.5 * density * velocity^2), where “density” is the air density and “velocity” is the aircraft’s velocity.
- “mu0” is the reference dynamic viscosity of the air.
- “b” is the wingspan of the aircraft.
- “Cyp” is the derivative of side force coefficient with respect to roll rate.