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Old 07-31-2012 | 02:31 PM
  #38  
JoshuaDA10
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From: Huntersville, NC
Default RE: chipmuck

HOLYRIGHTRUDDER!

Hey Rye, how many takeoffs have you been able to practice during this absolute fiasco?!?

Anyhow, just because I feel like adding my 2 cents. The main contributor, ONTAKEOFF, to the left yawing tendancy is gyroscopic precession. When a rotating object has a force applied to it that force is "felt" 90 degress in the direction of rotation from where the force is applied.

When the tail of an airplane lifts during takeoff a force applied to the top center of the prop disc as it accelerates forward and also the bottom dead center of the prop disc as it accellerates back. Imagine the prop turning clockwise (as it looks from the cockpit): 90 deg from top center is 3 clock and that is where that force is "felt" creating a left yawing moment. Compensate for this with right rudder, and it does help to apply throttle slowly.If you reduce the acceleration you reducethe force.

But don't think about all this Jeppesen Pilot Handbook material that everyone is slinging back and forth. Be smooth on your throttle, and this will help a ton. Do not hesitate with the powerjust be smooth, and practice practice, in time you will learn how to lead your rudder. Someone may have asked but what size prop are you running? A smaller diameter will tame the yaw a little and you can warm up that way.