Viperdoc writes:

Hey, asshole- how about rolls on the vertical, either up or down? The plane
is climbing or descending, while maintaining one g througout. There is no
change in the g forces associated with the roll.

That cannot be done, unless the entire frame of reference is in free fall,
which it isn't. If the frame of reference of the roll is not falling at 1 G
acceleration, it is impossible to maintain exactly one G while moving up or
down.