It refers to the lateral (sideways) force generated on an aircraft due to changes in the sideslip angle (β).
- Yβ: This represents the sideslip-induced lateral force. It quantifies the force acting in the lateral (y) direction on the aircraft due to changes in the sideslip angle (β).
- Q: This term represents the dynamic pressure of the air. It is given by Q = 0.5 * ρ * V^2, where ρ is the air density and V is the true airspeed of the aircraft. Dynamic pressure is a measure of the kinetic energy of the air due to the aircraft’s motion through it.
- S: Typically, this represents the reference wing area, which is the wing’s planform area. It’s used to determine the wing’s aerodynamic properties and is typically measured in square meters (m²).
- Cyβ: This is the aerodynamic coefficient related to the change in lateral force (Y) with respect to the sideslip angle (β). It quantifies how the aircraft’s lateral force changes as the sideslip angle changes. It is dimensionless.
- m: This represents the mass of the aircraft and is typically measured in kilograms (kg).