Further Adjustments - GRAUPNER 400 Bedienungsanleitung

2.3 Setting up the motor control system
The following diagrams show two alternative motor control curves:
• The "normal" power curve is suitable for hovering and circuits.
• The "aerobatic" power curve is set up in such a way that the motor does not stop at any
position of the collective pitch stick. This means that this curve must only ever be selected
when the model is already flying.
• The values stated above can only be a guideline as they vary greatly according to the motor
in use. There is no alternative but to fine-tune them during the test-flying programme.

2.4 Further adjustments

If you have made up all the linkages exactly as described in the previous sections, no changes
to the mechanical arrangements will be necessary. The following adjustments can all be carried
out at the transmitter:
1. Servo direction
Set the "sense" (direction of rotation) of all servos as stated in the instructions. Check the
speed controller in particular!
2. Dual Rates
You can set switchable travels for roll-axis, pitch-axis and tail rotor. As a starting point we
recommend 100% and 75% as the two settings.
3. Exponential
For the basic set-up you should leave all control systems set to "linear".
4. Servo travel centre offset
Do not make any adjustments to this point. At a later stage you may wish to make minor
corrections here.
5. Adjusting servo travel
This is where you can adjust the maximum servo travel. Note that the travels should always
be the same on both sides of neutral, otherwise you will end up with unwanted differential
effects:
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Micro Star 400