Tod, your comment about free fall is on the money and it makes the
analysis easy. Great insight. If we define a roll as the airplane
rolling on its axis I think it's realizable. Think about flying a roll.
It's probably complete in say 5 seconds. 5 seconds of 1 G acceleration
is about 160 fps, or about 100 kts. That might be a dive something less
than 45 degrees, and I agree a straight pull back to level would induce
some Gs.



You'll need enough elevator authority and air speed to maintain the 1
G.