Prepare for the AFOQT Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Practice this question and more.


The main purpose of the vertical stabilizer is to provide what?

  1. Roll stability

  2. Yaw stability

  3. Pitch stability

  4. Torque stability

The correct answer is: Yaw stability

The vertical stabilizer plays a crucial role in the stability of an aircraft, particularly in controlling yaw, which is the left and right movement of the aircraft's nose. This component, often referred to as the fin, helps to maintain directional stability by acting against unwanted yaw motions. When the aircraft experiences a disturbance that causes it to yaw, the vertical stabilizer generates a restoring force that straightens the aircraft back to its intended flight path. Yaw stability is vital for the overall control of the aircraft, especially during various flight maneuvers and in turbulent conditions. The vertical stabilizer works in conjunction with the rudder, which is mounted on it and can be deflected to control yaw actively. This stability is crucial for ensuring that the aircraft maintains a straight flight path and responds predictably to pilot inputs.