In flight mechanics, the “moment” (also known as “torque”) about the center of gravity refers to the rotational force or turning effect that acts on an aircraft about its center of gravity (CG). Moments are critical for controlling an aircraft’s orientation and stability.
Ne =ΔT×yp
- N_e: The moment (also known as torque) about the center of gravity (CG) of the aircraft due to elevator control input.
- ΔT: The change in elevator control input or the change in elevator deflection.
- y_p: The lever arm or moment arm of the elevator force about the aircraft’s CG.