PPRuNe Forums - View Single Post - Is the prop's relative wind same as the wing's relative wind?
Old 15th June 2008 | 14:58
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airfoilmod
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Corrections

The Rotation is important or one would not know which side of the A/C was affected by the additional thrust.

Torque does cause Yaw, or one would need Aileron on T/O rather than opposite Rudder. This applies to single engine A/C and twins with similar rotation.

R/W can be 90 degrees to Propellor Plane at times other than on the ramp. Consider windmilling or engines configured so at particular cruise.
Just as the wing needs an AoI, the Propellor can as well, or be "tuned" to cruise in the air mass at 90 degrees, while the wing is not.

Sir, in "exacerbating torque issues" I intended to suggest an enhanced Yaw to the left (counterclockwise propellor), not that the Propellor was creating or adding to torque.

I would also disagree that the discussion requires a "high angle of attack"
Any AoA at all creates the departure from ninety degrees by definition.

Last edited by airfoilmod; 15th June 2008 at 15:09.
 
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