Guimbal Cabri G2 no engine power at high altitudes

Thanks for the effort in explaining and elaborating on this topic.

If I was to start the Cabri at KTEX for example, with full rich, should I be able to fly still? Let’s assume I made the helicopter light and the temperature is a standard day. Density altitude 9000’ as well.

My experience was that the helicopter loses power and settle back. By losing power I mean it really loses a lot of rotor RPM. I then leaned it like a C172 and whalla I was flying like I was at lower altitudes.

Am I right to then file this bug, and the issue here is that on 9000’ feet the engine should still allow me to take off and accelerate to 50kts and beyond with the mixture in full rich? Or is it more like do not touch the lever. Stay away from 9000’ airports. Can it lean like an aircraft piston or is it just Rich and a few degrees later in cut-off with leaning in between?

Would you please mind trying this out yourself and see what you are experiencing?

Just trying to give positive feedback to MS and the team for a better flight model. Maybe they are aware of it and already on it. But it is not mentioned on the known issues page.