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All About Ailerons

Last month in this space we tackled “Proper Rudder Use,” pointing out that in many situations involving angles of attack (AoA) at or near the stall, rudder and not aileron should be the control used to maintain both heading and a wings-level attitude. We also explored how rudder is used to compensate for adverse yaw, and presented a simple exercise pilots can use to demonstrate both its proper and improper application.

Gemini Sparkle

Key Takeaways:

  • Ailerons create differential lift for banking but also generate adverse yaw due to differential drag, necessitating rudder input for coordinated flight.
  • At high angles of attack (near stall), using ailerons to correct wing drops can increase drag and potentially induce a stall; instead, rudder should be used to maintain heading and a wings-level attitude.
  • Coordinated turns require precise application of rudder, ailerons, and elevator (often in the "RAE" order: Rudder, Ailerons, Elevator) to prevent slips, skids, altitude loss, and dangerous conditions like accelerated stalls due to increased wing loading.
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Last month in this space we tackled “Proper Rudder Use,” pointing out that in many situations involving angles of attack (AoA) at or near the stall, rudder and not aileron should be the control used to maintain both heading and a wings-level attitude. We also explored how rudder is used to compensate for adverse yaw, and presented a simple exercise pilots can use to demonstrate both its proper and improper application.

Of course, any complete discussion of how to use an airplane’s rudder must also include ailerons and the how and why of their workings, how they create adverse yaw and how we use rudder to maintain coordinated flight. Finally, we want to address an age-old question: Which to apply first when rolling into a banked turn: Rudder? Aileron? Both? Why?

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