Possible adverse yaw?
05-13-2002, 08:35 PM
#1
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Possible adverse yaw?
combination of adverse yaw and "torque" turning is the probable cause.
the answer is to learn to use the rudder instead of the ailerons durring take-off...
All too often I hear of people blaming the plane's "poor design" for these problems (especially the Piper Cub) when its more a case of not flying the aircraft correctly.
Scale biplanes and high wing taildraggers with "barn door" ailerons NEED rudder control at low speeds. You can partially compensate (if you have the feature on the radio) by mixing 25% rudder to the aileron. This is great for auto-coordinated turns, and will reduce the adverse yaw effect when you forget to use the rudder.
You can also reduce the effect of adverse yaw by rigging the ailerons with a high differential... 20% as much downward deflection as upward will almost eliminate the effect.
the answer is to learn to use the rudder instead of the ailerons durring take-off...
All too often I hear of people blaming the plane's "poor design" for these problems (especially the Piper Cub) when its more a case of not flying the aircraft correctly.Scale biplanes and high wing taildraggers with "barn door" ailerons NEED rudder control at low speeds. You can partially compensate (if you have the feature on the radio) by mixing 25% rudder to the aileron. This is great for auto-coordinated turns, and will reduce the adverse yaw effect when you forget to use the rudder.
You can also reduce the effect of adverse yaw by rigging the ailerons with a high differential... 20% as much downward deflection as upward will almost eliminate the effect.
05-14-2002, 06:42 AM
#2
Senior Member
Possible adverse yaw?
A failure to respond to aileron on takeoff isn't uncommon, when the takeoff speed is way too low. You fly into a tipstall.
And it's to the left, as you stall the left wing with right aileron.
Increase the takeoff speed.
And control the heading with the rudder.
I seriously doubt "adverse yaw" effect from the ailerons at this low speed is the culprit.
And it's to the left, as you stall the left wing with right aileron.
Increase the takeoff speed.
And control the heading with the rudder.
I seriously doubt "adverse yaw" effect from the ailerons at this low speed is the culprit.
