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Planes => Autopilots => Feiyu Tech => Topic started by: DaveyLC on January 13, 2013, 11:00:48 PM

Title: FY31AP freaking out on an RTL run.
Post by: DaveyLC on January 13, 2013, 11:00:48 PM
I was 2.6km out today and pretty high up when I flicked RTL and my FY went doolally, it behaved like it was in ACM mode eventually after scrubbing off altitude it headed home ok? I was starting to need new pants!!

It was like it kept over correcting the home path? Is this common I've never seen it behave like it before :|

Cheers guys :)
Title: Re: FY31AP freaking out on an RTL run.
Post by: Teamftp on January 13, 2013, 11:09:56 PM
Yep mine has done that before and did the same as you and cacked my pants  :laugh: :laugh:
Title: Re: FY31AP freaking out on an RTL run.
Post by: Coyote on January 13, 2013, 11:23:02 PM
Its because your P value is too high in your settings.

You can either :

1) Drop your roll gain and loose some stabilization or

2) USB the FY31AP to your PC, load the GSC software and drop roll P value to around half of what it is ( 50 ) which is a much better idea. Then you keep the great stability and get super smooth RTH, instead of over correcting it will slowly turn and point straight to home.
Title: Re: FY31AP freaking out on an RTL run.
Post by: DaveyLC on January 14, 2013, 10:14:10 AM
Thaks Coyote.. I'll give it a go tonight :)

I dont suppose the extra weight of my gopro/cam could be messing with my FY and causing my 'flutter' issues?
Title: Re: FY31AP freaking out on an RTL run.
Post by: Coyote on January 14, 2013, 12:54:55 PM
No that won`t bother it at all
Title: Re: FY31AP freaking out on an RTL run.
Post by: DaveyLC on January 14, 2013, 07:48:35 PM
I've knocked the Roll angle down to 30 (is this the right value? ) and I'll give it a test on saturday :)

(http://dohc.co.uk/temp/FPV/fy31ap_settings.PNG)
Title: Re: FY31AP freaking out on an RTL run.
Post by: Coyote on January 14, 2013, 08:25:00 PM
Yes that`s the one, you will find its much less aggressive now, if its too "relaxed" for you increase to 35
Title: Re: FY31AP freaking out on an RTL run.
Post by: DaveyLC on January 14, 2013, 08:46:51 PM
Thanks :) maybe ill take the laptop out with me when I test it :D
Title: Re: FY31AP freaking out on an RTL run.
Post by: DaveyLC on January 20, 2013, 06:43:41 PM
Well with the new values the stabilisation doesn't seem so aggressive and the RTL worked fine but I haven't tested it at range :)
Title: Re: FY31AP freaking out on an RTL run.
Post by: Coyote on January 20, 2013, 08:54:17 PM
Sounds good so far :)