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A very basic question



 
 
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Old November 6th 04, 11:10 PM
bryan chaisone
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"The Weiss Family" wrote in message ...
Unlike the elevators and rudder that change an aircraft's pitch and
yaw with no other secondary effect, why does the banking of wings by
the use of ailerons not just roll an aircraft but also produces a turn
(yaw)? Logically, one would expect an aircraft to keep going straight
ahead even if the pilot banked the aircraft left or right. Where does
the turning effect come from?

Is there a website you know of that can teach me such basics, without
having to bug you?

Cheers,

Ramapriya


Rudder most definitely adds roll as a secondary effect.
In fact, I use rudder to momentarily keep the wings level when I'm changing
maps, etc.
At low speeds, when the ailerons are not that effective, rudder can be much
more effective.

As to the aileron, think of the relative wind on the wings.
With an aileron dropped (looking like a flap), there will be increased drag.
Of course the other one goes up, but I don't think the resultant force is
equal on both wings.
Thus, yaw results.
While it seems intuitive to me, I probably don't have the best explanation,
so can anyone else elaborate?

Adam
N7966L
Beech Super III


Because when the wing is level, the lift is up. When the wing is
banked to the right, the lift is also tilted to the right pulling the
plane in the direction. Same for the left.

Bryan
 




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