I'll spend all day looking for that reference if need be.
That's a new one to me. I would be interested in seeing the data on that.
It showed the pilots passing out at various Gs in centrifuge-type training.
I have personally seen female pilots who were just as good as their male counterparts, and I am one of their biggest defenders. I love my sister Marines just as much as my brothers and have the utmost confidence in them, but I can't say I buy into that statement. 9+ would have anyone heaving and blacking out, if sustained for more than a few seconds.