Spirit System

@TO: what frequency are you running the tail servo at? (max. = 250Hz for SB2272MG following many sources, other saying 333Hz) btw: did you set Tail Revomix?

is it getting very warm? did you do any test on your tail servo? just put a little bit of load on it by holding tail pushrod with 2 fingers (not too tight) and check if it is starting to loose power more than to be expected (it is strong). does it get very warm during the test?

i had this servo in a Logo 690... first it was easy to setup, tail was good to very good. then i noticed it being really hot after flight, next 2-3 flights some tail blowouts i thought i just pushed it too hard, then it failed mid flight. btw: i was @ 333Hz.

thanks all for all hints, replies inline

> if running the governor, the gain could be too high or too low for response gain.
using castle internal governor "set rpm)

> Your tail thrust bearings could be worn out.
all bearing are new

> The tail servo could be going bad.
can be ... will verify

> How much collective pitch are you running?
+-12°

> What is piro consistency set to?
> I would start off around 155 and only turn up main tail gain as much as possible first.
> If it's already low or default then check the things above.[/quote]
is the wizard default for trex 600 - 165

HeliMLM wrote:@TO: what frequency are you running the tail servo at? (max. = 250Hz for SB2272MG following many sources, other saying 333Hz) btw: did you set Tail Revomix?

is it getting very warm? did you do any test on your tail servo? just put a little bit of load on it by holding tail pushrod with 2 fingers (not too tight) and check if it is starting to loose power more than to be expected (it is strong). does it get very warm during the test?

i had this servo in a Logo 690... first it was easy to setup, tail was good to very good. then i noticed it being really hot after flight, next 2-3 flights some tail blowouts i thought i just pushed it too hard, then it failed mid flight. btw: i was @ 333Hz.

from specifications they say 333Hz
will try at 200Hz ( 250Hz is not available in spirit settings )
https://www.savoxusa.com/products/savsb ... al-details

urgno wrote: from specifications they say 333Hz
will try at 200Hz ( 250Hz is not available in spirit settings )
https://www.savoxusa.com/products/savsb ... al-details

i had the specs from https://world-of-heli.de/servos/savox/s ... 72-mg.html where i bought mine... but this should anyhow not be your problem. just check if they are getting too warm...

Checkout.....http://manual.spirit-system.com/index.p ... Sav.C3.B6x
Should be good at 333Hz

yes checked

the fact is that i have to find the right combination of:
- gain
- common gain
- rudder delay
- castle governor gain
and more ...

don’t know how is best to proceed

It's a bit 'newbie' but did you select Trex 600 in the setup wizard? At least you'll have a known working setup to go from.
My next step would be a different servo.

yes ofc I did use trex600 in wizard

Please proceed according our guide:
http://manual.spirit-system.com/index.p ... ning_Guide

You can set Governor Gain before tuning tail so that RPM will hold well enough, but you will not hear any motor jittering.

will do some test after vacation
thanks to all