I have purchased and am in the process of installing the sub-frame for the Affordable Panel (RV-9 tip-up) and my question is this, will I ever need to remove the sub-frame or can I permanently rivet it in place?
Well I made mine totally removable at any time. Simply not rivet the lower angle in place. Then you can get the sub-frame in and out whenever you want.
But I don't see a reason why you couldn't permanently attach it.