|The vertical tail fin controls Directional Stability. This
movement is called "yawing".
||Lateral stability is controlled by a special wing shape called
the dihedral. This is when the wings are slightly shaped upward
similar to a slight "V" shape. This prevents the aircraft from
rolling. If rolling occurs the angle of attack of the wing that is
going down will increase, and the wing will be pushed upward until
the aircraft is level. This is same with the other wing.
||Longitudinal stability prevents the aircraft from doing dips
or nose-ups. The part of the airplane that holds longitudinal
stability is the horizontal stabilizer.|