"Max motor speed reached" Warning

[TomMcC]

Hello all. I've had a Mavic Pro for some years now, but also fly FPV. I decided to combine the 2 and build an 8inch quad using Mavic pro motors and props, a 4200mah 3s1p li-ion battery and using inav firmware. All went well except at 54% throttle the props become increasingly unstable with incredible amount of vibration. This 54% throttle on 3s (12.6v) equates to around 9500rpm so the limiting factor and the reason I believe for the max motor rpm warning is the operating window of the props. It also means that the Mavic utilizes throttle limiting/scaling.