>It's likely that at least one of those military-industrial black projects have figured out not only exotic propulsion systems that allow craft to travel incredibly fast and make right hands turns, but also how to shield the occupant of the craft from the inertial forces. Then the G forces wouldn't be an issue.
It is possible to reduce the inertial mass and hence the gravitational mass, of a system/object in motion, by an abrupt perturbation of the non-linear background of local spacetime (the local vacuum energy state), equivalent to an accelerated excursion far from thermodynamic equilibrium (analogous with symmetry-breaking induced by abrupt changes of state/phase transitions).
Craft using an inertial mass reduction device
STATEMENT OF GOVERNMENT INTEREST
The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without payment of any royalties thereon or therefor.
2016-04-28
Assigned to DEPARTMENT OF THE NAVY
2017-11-02
Publication of US20170313446A1
2018-12-04
Application granted
2018-12-04
Publication of US10144532B2
https://patents.google.com/patent/US10144532B2/en?inventor=Salvatore+Cezar+Pais