Bobsleigh of last resort

A device for one or two occupant evacuation from near orbit manned satelites/space stations. It is about the size and shape of a regular two man bobsleigh, but made mostly from ceramic materials to withstand high temperatures. The rider, while falling through the atmosphere wears his/her space suit, and assumes the tuck position behind the ceramic fairing.

At the front is an inlet (like a gaping shark mouth) to a Ranque-Hilsch vortex tube, which runs the length of the underside of the sleigh. The hot end opens directly to the rear of the bobsleigh, the cold end is ducted to keep occupants cool, a thermostat is provided and linked to the hot fraction controlling valve on the tube to maintain an even temperature for the rider .

As you hurtle toward earth at ludicrous speed, you have no short supply of compressed air to keep the tube humming nicely (the shark mouth is actually an adjustable aperture so that the vortex tube doesn't hum itself to bits - No I do not pretend to Know how they work, but am figuring that too much pressure might just be a bad thing)

Along the length of the bobsleigh are sufficient fins to ensure it's general nose first descent when it falls from 'space' and begins to be affected by earth's atmosphere. Once speed has reduced enough, the on-board chute opens and the whole thing floats gently the remainder of the way to Earth.

On the 'dash' is the warning sticker- Please keep hands and feet inside vehicle during re-entry.

Thanks to [Bigwill] for the astronaut parachute idea.