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Old 11th Nov 2014, 09:11
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Double Back
 
Join Date: Jul 2002
Location: Netherlands
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"Torque" isn't a really big thing for normal sports planes.
Two things need to be made clear however: torque exerted during stabilised RPM, and torque created when the RPM is quickly increased, as in "gunning" the throttle.
The mass of the prop needs to be accelerated and that will try to "roll" the plane around its longitudinal axis. But only briefly. And it will produce NO movement around the top axis (yawing) directly, like the spiralling airflow coming from the prop does.
It will be concealed by the more pronounced effects that happen during Take Off. As long as You have no Griffon with 2420HP with a heavy (metal?) 4 blade in front of You, "torque" might be the least thing to worry about. Crosswind or not.

You can clearly see the phenomenon on a float plane, gunning the throttle dips the LH float momentarily (with clockwise turning engines), but comes back as RPM stabilises. Surely the float will be dipped somewhat lower in the end, but the resulting force counteracted by the huge wings it will not be noticeable, at least I have never really noticed it.

Come to speak of it, I wonder if torque also exists with counter-rotating props?
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