Horizontal and Vertical Stabilizers
The tail of the airplane has two small wings, called the horizontal and vertical
stabilizers, that the pilot uses to control the direction of the plane. Both are symmetrical airfoils, and both have large flaps on them that the pilot controls with the control stick to change their lift characteristics.

Horizontal tail wing
|

Vertical tail wing
|
With the horizontal tail wing, the pilot can change the plane's angle of attack, and therefore control whether the plane goes up or down. With the vertical tail wing, the pilot can turn the plane left or right.