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Aerospace Spinning propeller cause a plan to yaw while it is taxiing?

  1. Dec 3, 2009 #1
    Hi Everyone,

    There is something I am having trouble I am understanding. Why does a spinning propeller cause a plan to yaw while it is taxiing?

    Also, how does the flow behind a propeller effect the performance of the control surfaces on the tail? Does it have any effect? Because the flow from a propeller is not straight so I would imagine it effects the aircraft somehow.
     
  2. jcsd
  3. Dec 3, 2009 #2

    FredGarvin

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  4. Dec 14, 2009 #3
    Re: Propellers

    Good link, Fred.

    The primary cause while taxiing involves propellor wash.

    P-factor isn't a concern for tri-gear, and only a concern for taildraggers when the power's in and the forward velocity is fast enough to matter, a situation rarely encountered during taxi operations. Torque is a non-factor as the main gear simply torques back.
     
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