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Knowledge base Vortex VX1 Fine tuning

Question #170
If the Vigorous (V1) rotor control system offers better performance why does Spartan recommend to use the Adaptive (V2) system first?
Answer

The Vortex was designed from the outset to offer very low latency and fast cyclic response that match a flybared helicopter. To achieve this the original "Vigorous" (aka V1) control algorithm drives the swashplate more aggressively than other flybarless systems. The helicopter's head dampeners and swash servo linkages need to be in good condition with ample torque and minimal play. In addition the Rotor::Ele Debounce parameter needs to be fine tuned to remove any bounce/oscillations during flip stops.

After the original product launch it become apparent that a number of beginner/sport pilots did not understand the tuning process or wished to do it in order to fly their machines. In the V2 firmware update Spartan introduced the "Adaptive" rotor control algorithm. Whilst there are some small sacrifices in performance it still maintains faster response than other flybarless systems. However it gains a lot in offering better performance straight out of the box with practically zero flight tuning.

We anticipate that many existing Vortex users that have previously flown the "Vigorous" algorithm in the V1 firmware will prefer it over the new "Adaptive" option which is the default in the V2. We therefore offer the ability to select either one via the Rotor::Control System parameter. The new "Adaptive" option should not be seen as an upgrade or downgrade over original "Vigorous". Each has it own strengths in different areas that satisfy different customer needs. However the "Vigorous" algorithm has the potential of better overall performance after investing a bit of time in fine tuning.

If you are a new customer that wishes to explore the "Vigorous" algorithm for the first time:

1) Select the Rotor::Control System::Vigorous option

2) Set the Rotor::Acceleration to 75%

3) Set the Rotor::Deceleration to 75%

4) Adjust the Rotor::Ele Debounce parameter until any vertical tail bounce is eliminated. Keep in mind that this parameter operates similar to a tail gain and if increased too high additional oscillations may appear because of it. Increase/decrease this parameter in steps of 10% as smaller changes don't usually provide noticeable changes in behavior.

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