AIrplane Parts/ Control Surfaces

A vertical stabilizer, or tail fin, keeps the airplane lined up with its direction of motion. Air presses against both its surfaces with equal force when the airplane is moving straight ahead. But if the airplane pivots to the right or left, air pressure increases on one side of the stabilizer and decreases on the other. This imbalance in pressure pushes the tail back into line.

The horizontal stabilizer helps keep the airplane aligned with its direction of motion. If the airplane tilts up or down, air pressure increases on one side of the stabilizer and decreases on the other, pushing it back to its original position.  

Angle of Attack is the angle between the general air movement/direction of the aircraft and the angle of the wings.

If the angle is too great, the wings are not able to generate enough lift, and the airplane stalls.

A STALL is when the airplane loses lift and will begin to fall out of control.

To recover from a stall, the pilot should reduce the angle of attack. This will help the wings generate more lift and recover the flight.