But I am wondering why you can even move the CG, it should be a fixed value/position per aircraft/variant. Maybe that is why you get the error. Instead of an error message maybe disable the option to move it (if it is the intended logic).
It’s useful for adjusting ballast in certain gliders. What’s interesting is that it does apply the centre of gravity when adjusted in flight, it will still result in the error, but the centre will change and stay in that state.
I’ve used it to change the CG to match the book values on a particular aircraft. Some in-sim aircraft diverge greatly from that, and for no good reason (say, addressing installed equipment, etc). So it’s nice to play around, test out different configs to see if the performance gets closer to the book. That said, in most cases it really doesn’t matter - a couple percent is within the margin of error.
Either way, I agree that it’s a bad UX decision to include it on an up-front menu. But I wouldn’t mind retaining the ability to change the empty weight and CG from a more advanced, nested menu, with requisite warnings for the uninitiated.
