[SOLVED] New to Spirit FBL and the first question

[thgeisel]

I got my second spirit pro today and put it in a thunder tiger raptor E550

Everything is working fine, the only problem is that the tail is moving up and down during flight .

Not much and I can fly like this, but it would be nice if there is a parameter in spirit to stop it.

[Dawiev]

Check the Tuning Guide in the Sticky section for elevator procedures

[ZeXx86]

Hi,

is the helicopter after crash or it is new one?
If it is after crash, then it can be caused by a bent main shaft.
If new, then it could be too tight bolts in the blade holders - in this case blades can't center properly so it is not balanced.
Making it more loose it will solve the problem.

[thgeisel]

Thank you for your help. I will try the things you suggested and look if it is getting better.

The thing is , the heli was flying till thursday with a vbar without that behavior ,

on friday I recieved the spirit pro and put it into the heli . Maybe the spirit is more sensitiv.

[ZeXx86]

If it worked well with Vbar, then it can work well with Spirit too and can be tuned with parameters.
The parameters that could affect this are:
- high Sensor/Cyclic Gain
- high Advanced/Geometry 6° (please verify the value)
- high Advanced/Elevator Filter
- inprecise Subtrim settings

If you are flying with low RPM then it might need a special tuning.

[velocity90]

Did you select a 140 degrees swashplate? Just a thought
.

[thgeisel]

Yes, I selected the 140° Swashplate. And I did some small corrections in the mechanical setup and the geometrie 6° and now the problem is solved.

Thank you very much for all your help