PID Rate D

[brat002]

I have a question about PID Rate D parameter. How it affect flight performance?
What happens on too low and too high D and how to find normal value for my frame?

[phynix]

D is the "derivative"-correction, it basecally does two things: counteracting fast disturbances and dampening mainly P (avoiding overshoots of corrections).

See also here: http://autoquad.org/wiki/wiki/configuri ... ng-theory/

And also https://www.youtube.com/watch?v=Y--fGjodSek#t=93

Hope that helps,
Sören