Skywalker x8 waveing during flight in AUTO mode

Log Analysis -- deprecated Plane Logs -- deprecated
1

Hi guys,

I have problem with navigation of my Skywalker x8 in AUTO mode. As you see on the picture below, the plane cant fly straight between waypoints and also makes unnecessary turnings. I am using mission planner ver. 1.3.44.

log.png1280×800 920 KB

First I tought the problem is with navigation tuning and tried to change some parameters, Here are the parameters from which I started:

NAVL1_PERIOD 22

NAVL1_DAMPING 0.8

RLL2SRV_P 1

RLL2SRV_D 0.02

RLL2SRV_I 0.04

PTCH2SRV_P 0.65

PTCH2SRV_D 0.02

PTCH2SRV_I 0.04

After that I tried to make some changes in the values but it didnt help. Do you have any idea which parameter can cause this issue? Some other parameter what I didnt change? Or could it be something else like compass error? The plane is flying well in manual and FBWA modes. I will appreciate any help!!

I also uploaded the logs to google drive, here is the link for download: https://drive.google.com/file/d/0Bwtgo0Y55BmmQmQ0TldiNFZsVzA/view

2

Have you autotuned the plane? If not give that a try first. Instructions are on the wiki.

Thanks, Grant.