Hi, the above video shows my first TVBS was flying very well about 4 months ago
But…she changed terribly ( She has been stored for 4 months just after flying )
Please watch below video . . .
https://photos.app.goo.gl/siWXTsVCNb95TjBg6
The tilt servos seem like jittering but in fixed wing mode, no problem.
what I did In order to fix this problem
- Conduct all calibration
- Change FC ( of course all calibration done again )
- FW downgrade ( 3.8.5 to 3.8.4 becuase it was 3.8.4 when she flied well )
- Change EKF3 to EKF2
- Change power to servo rail
Even after No4 she was skyrocketing when I did throttle up with QHover mode
( The attached log file has it. https://drive.google.com/file/d/17wvm-_BYF296rWf2kehATw5ZyHRjyWcf/view?usp=sharing )
iampete
(Peter Hall)
2
looks like a throttle scaling issue, as seen here
I have submitted a pull request but is yet to be merged,
If your using a pixhawk1 there is a compiled version with the fix you could try.
Interesting that it started suddenly, upping the D gains in particular seem to bring it on, I have found there is a wide range of gains that work.
Defiantly use EKF3