I have tried to use the APM 2.5 on the FPV Raptor without great success.First of all, it does not keep altitude during turns in Auto and secondly, it only uses throttle to try to keep altitude. Have…Continue
"I guess it all depends what you're going to do with it.
If it's for tilt, you probably need a bit more power, for use maybe less. But if your AT is very heavy, you may choose higher ratio.
I 3D printer the gears myself and balanced the…"