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Pirouette drifting

Posted: Tue 14. Apr 2015 12:03:12
by Christian T.
Hi,
Ive got some problems with my spirit-system on my new 6hv. The spirit has been used on my x50e without any problems, thats why ive got no idea what im doing wrong.
While im doing a normal pirouette, the nick and roll are mixed in totaly wrong. In these 2 Videos its quite good to see (sorry for bad mobile phone quality)
https://www.youtube.com/watch?v=EX1wd07o7_0
https://www.youtube.com/watch?v=99xcUE3BwqA
As you see, if i gier my heli 180° arround theres a big drift. Nick is hardly turning into tail direction, roll is mixed too much to the left. After the next 180° everything is perfect again. Pirouette optimization is correct. Geometry 6° is done correctly.
There are no vibration problems logged after flight. If theres a vibration problem, could it be exactly the same problem every time? Even with 2 different headspeeds? Should i try to fix it with softer pads (the one i used now is quite hard)?
Hope you can help me out here.

Christian

Re: Pirouette drifting

Posted: Tue 14. Apr 2015 12:27:18
by ZeXx86
Hi,

if you are very sure, that pirouette optimization is correct (I recommend it to recheck) then there may be big problem in the servo settings. Especially Subtrim configuration in the software.

Make sure, that when Subtrim (tuning) is enabled, then servo horns are at 90° and your cyclic is perfectly horizontal while your blades pitch is 0° at this moment.