FrSky TANDEM X20, Руководство пользователя

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X20/X20S and Ethos v1.2.10 User Manual
Weight/Rates
Referring to the Weasel manual, the recommended deflections for Aileron are
approximately 3x greater than for Elevator. We want combined weights of 100%, so
the aileron weight should be 75% and elevator 25%.
According to the Weasel manual, low rates should be about 50% of the high rates.
Therefore we will use 36% for aileron low rates and 12% for elevator low rates.
Expo
In the Rates examples above you can see that the output response is linear. To avoid
the response being too twitchy at the stick centers, you can use an Expo curve to
reduce the control surface movement at center stick and to increase it as the stick
moves further from center. The Weasel recommended Expo values are 35% for high
and 20% for low, so we will add a curve that will be active on the SB switch down
position. The graph now shows a curved response which is flatter at stick center.
For Ailerons there is another special setting called Differential. If the left and right
ailerons move up or down by the same amount, the downward moving aileron will
cause more drag than the upward moving aileron, causing the wing to yaw in the
opposite direction to the turn. This is known as adverse yaw. To reduce this a positive
value in the Differential setting will result in less downward aileron movement,
reducing adverse yaw and improve turning/ handling characteristics. The Weasel
recommended differential is quite small and equates to about 4%.
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