Hinge Moment is defined as the force required deflecting a control surface. In small, relatively slow airplanes, hinge moments are not very large; pilots move the controls with ease. But as control surfaces get larger and speeds get higher, Hinge Moments Grow Rapidly.
ρ is the Density
Se is the Elevator Area
Ce is the Elevator Chord
Vt is the Velocity at Tail section
CH is the coefficient of Hing Moment