The Elevator Hinge Moment Coefficient in aviation is a dimensionless parameter that characterizes the moment generated at the hinge point of an aircraft’s elevator control surface. It quantifies the effectiveness of the elevator in producing a pitching moment, crucial for controlling the aircraft’s pitch attitude. The coefficient is determined by the aerodynamic forces acting on the elevator and provides valuable insights into the stability and control characteristics of the aircraft. The formula to calculate Elevator Hinge moment coefficient as follows:
Where:
- He is the Elevator hinge moment in Nm,
- Q is the Dynamic pressure in Pa,
- Se is the Elevator planform area in m2.
- Ce is the Elevator Chord length in m.