Fundamentals of Airplane Control

Mar 18, 2025

How to Control an Airplane

Introduction

  • Understanding how to control an airplane is vital for building a strong foundation in flight training.
  • Airplanes move in three dimensions, rotating around their center of gravity on three main axes: lateral, longitudinal, and vertical.
  • The video is part of a free Private Pilot ground course available on YouTube.
  • Full premium course available for endorsements, reading assignments, and quizzes for $50.

Center of Gravity and Center of Lift

  • Center of Gravity (CG):
    • A theoretical point where the weight of the aircraft is concentrated.
    • Balances like a pivot point; if placed on a string at the CG, the aircraft will be perfectly balanced.
  • Center of Lift:
    • Theoretical point where all wing lift is concentrated.
    • The CG is placed in front of the center of lift to ensure stability.

The Three Axes of Movement

1. Lateral Axis (Pitch Axis)

  • Movement: Pitching the nose up or down.
  • Controlled by: Elevator
    • Control Mechanism:
      • Pulling back on the yoke raises the elevator, deflecting the tail downward, tilting the nose up.
      • Pushing forward on the yoke lowers the elevator, deflecting the tail upward, tilting the nose down.
    • Mnemonic: "Trees get bigger, trees get smaller."

2. Longitudinal Axis (Roll Axis)

  • Movement: Rolling the aircraft.
  • Controlled by: Ailerons
    • Control Mechanism:
      • Rotating the yoke raises one aileron and lowers the other, creating differential lift for rolling.
      • The lowered aileron creates more lift; the raised one creates less.

3. Vertical Axis (Yaw Axis)

  • Movement: Yawing side to side.
  • Controlled by: Rudder Pedals
    • Control Mechanism:
      • Push right pedal for right yaw; left pedal for left yaw.
      • Used mainly for maintaining directional control due to adverse yaw.

Adverse Yaw

  • Occurs when the lowered aileron creates more drag, causing the aircraft to yaw in that direction.
  • Solution:
    • Use rudder pedals in conjunction with ailerons to maintain alignment with the direction of travel.
    • Apply a small amount of rudder towards the direction of roll.
    • Ensure the ball of the aircraft is centered, indicating proper alignment.

Conclusion

  • Practice these controls to ensure proper understanding and control of an airplane.
  • Take quizzes to reinforce learning and check for retained information.
  • Check out additional resources and endorsements at FreePilotTraining.net.