shdw

I leave it out intentionally, no sense in adding confusion; for two reasons. Ones is because I can't answer the next question "what is safe for negative G's?". The second is because you also over stress your skull if you ram the yoke forward. This is of course when it collides with twice to three times the weight of your body into the ceiling. This of course won't happen if you have a 5 point belt with a submarine strap, but I haven't seen many non aerobatic aircraft with that.

I'm not even certain you are right, you're basing your analysis on the Vg diagram. Nothing is to say there is enough control throw to even impact that point on the diagram. I do know that the two aerobatic aircraft I've flown had identical Va for inverted and upright flight. We went full controls in all directions at Va. Furthermore, an outside (inverted) loop in a cap 10 is done at 165 mph dual (Va=146).