In the vein of the Expanse's juice or the Forever War's submergible tanks, what types of body or cockpit modifications would allow a human to survive high G maneuvers in short impulses in a combat setting? Note in this case I am not looking for major coverage in the vertical (+/- Y axis), rather the lateral planes.
Some context. My mech pilots are basically flying glorified hover tanks that can rocket around quickly. If you've ever played the later Armored Core games, you'll know what I'm talking about. Maneuvering is handled by a series of short high impulse/high G rockets. General movement is a much softer powered flight of sorts, the main takeaway is that the "legs" of the mech never touch the ground in a combat or self-powered transport mode. That said, no one is going to be straight line accelerating at high G for more than a minute at most, such a maneuver would essentially be teetering on the edge of death and not a tactic taught or routinely employed at all. These quick maneuvers happen when an opponent has closed in very close. Engagements don't typically last more than five minutes at max. Rapid direction/vector changing does happen during these moments. Essentially the mechs are zipping around each other like ice skaters.
Some tech level surrounding the pilots/world:
- Early cybernetics. Signals from the brain passed into a microchip can allow prosthetics to move in certain predictable ways for daily and limited combat use.
- Based on the type of person/ how they were born, their organs, limbs, nerves etc can be regrown with exception of the brain. Decent amount of stem cell research in this world.
- The mechs/tanks in general aren't using composite armor all that much for defense. The first layer of defense is essentially a particle shield that slows or disintegrate parts of an incoming warhead. The second layer of defense is copious amounts of explosive reactive armor to defeat stripped/heavily damaged warheads that brute forced their way through the shield. Lastly some mechs/tanks might have a final layer of composite armor. Though there's decent numbers that have just structural metal under ERA blocks.
- Low level gene editing.
- Advanced recoil dampening systems for weapon systems on all levels. From the lowly rifle up to tank/mech guns.
- High impulse thrusters that don't melt or crack under repeated use (near future material science).
- A system in place that allows a person or pilot to be flooded with fluids at various points in their body. Requires multiple small tubes throughout the body. System isn't experimental and is routinely used in emergency medical situations.
- Virtual prosthesis/bionic eyes. Sight is nearsighted only, however. Significant drop off past a few meters. Good picture quality, however.
- Advanced cameras,optics,sensors etc. Pilots, tankers, mech pilots, ship captains etc don't need the use of windows or clear material for navigation. Cameras and visual image stitching has allowed fighter pilots in particular to fly with completely enclosed and more aerodynamically suited cockpits. Basically no one is using glass/clear material for navigation anymore for combat. The screens that are used are optimized for long term visual use and are detailed enough to capture very small detail. Added benefits of image processing are baked in such as zooming in, different encoding/color options etc.
Body modifications can start at or even before birth.
The maneuvering thrusters aren't constantly firing off in a certain direction like a rocket engine, rather there is a massive burst of thrust in a short amount of time. Time could range from less than up to a second and a half. The mechs make heavy use of momentum to "skate" across the battlefield. Thrusters can be toggled/chained to a very limited degree in the same direction at a high thrust output, they however can use a much lower impulse over a longer period of time to essentially glide much more smoothly. In this mode its more akin to general movement than heavy combat maneuvers, it's the equivalent of a fighter jet cruising to combat and then actually pulling high G maneuvers during combat. There's significant drag as well. It can be safely assured that the Mach barrier will not be crossed in sustained flight/chained maneuvers on a single vector.
For the purposes of this question, I am trying to find something that allows a pilot to survive high near instantaneous G forces/jerk.