Preflight Pass

Airframe · Lesson 15 of 40

Flight Controls

Primary, secondary and auxiliary control surfaces, tabs and wing devices, the cables, turnbuckles, rods, torque tubes and bellcranks that move them, how to inspect and rig the system, and how balance prevents flutter.
12 min read

Last reviewed

Part of A&P Complete

This lesson is in the full course

  • Match each primary, dual-purpose and auxiliary control surface to its function and axis
  • Explain how trim, balance, servo, antiservo and spring tabs work
  • Inspect control cables, pulleys, fairleads, turnbuckles and push rods against AC 43.13-1B limits
  • Describe the steps for rigging a cable control system, setting tension and adjusting stops
  • Explain static balance and rebalance a control surface by the calculation method