Astro SG Wise
Future Orion MPCV Pilot
No, for much longer - the unburnt fuel/oxidizer of the onset/shutdown of the thruster firing would simply blow into the capsule with the exhaust of the thruster firing, once the capsule is open. Luckily, the astronaut already wears a pressure suit. sadly, you would need to decontaminate the astronaut before he could take off his ACES suit.
Also, you overestimate the thrust of the RCS there. The thrusters are designed for space and upper atmosphere and will loose a lot of thrust to ambient pressure. The capsule would still be tumbling a bit while the thrusters are busy preventing much worse - for a few seconds before running out of fuel.
No, the astronaut would be cremated long before he could pull the release handle.
You can say, as coarse rule of thumb: Deploying a personal parachute at any speed above Mach 0.5 is nearly impossible, above Mach 0.3 it is risky.
For any high speed egress, you have special stabilization systems that have only the job of bringing you into the range for a successful parachute deployment and use powerful pyrotechnical deployment systems (parachute mortars), that can deploy a parachute even at higher speeds.
But such parachute mortars are not possible in an ACES suit, for a good reason - just imagine accidentally firing one inside the capsule.
Well, the only reason I over-estimate RCS thrust is that I have seen it work in Orbiter, and I have seen it in real life (AKA EFT-1)! When Orion comes down, it is bottom down, head up, and stable. It wouldn't be "tumbling" unless something went wrong with the RCS. Good with the astronaut cremation :thumbup:.
On the decontamination of the suit, would the crew have enough air in their ACES for a rescue crew to get them and decontaminate the suits?
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