There's a common GA plane (M20) that moves the entire tail for trim, both the horizontal and vertical stabilizer as one piece. Basically conventional (not a ca

There's a common GA plane (M20) that moves the entire tail for trim, both the horizontal and vertical stabilizer as one piece. Basically conventional (not a canard) stable (not an F-16) aircraft have the CG in front of the center of lift of the main wing so it wants to nose down. The tail then acts as a counter balance, pushing down to keep the nose up. Because airspeed over the smaller surface effects its downforce and the center of thrust is not always in line with the center of drag, they add trim to prevent the pilot from having to maintain constant control pressure. Some do it by biasing the control surface itself, either in the control mechanism or with a tab that aerodynamically moves the surface, or by changing the angle of attack of the horizontal stabilizer.