This was the system where after the craft explodes and is falling to earth at mach2 - you jettison a hatch, extend a boom, put on safety harness, clip the harn

This was the system where after the craft explodes and is falling to earth at mach2 - you jettison a hatch, extend a boom, put on safety harness, clip the harness to the boom and slide out to then end (to clear the wings and tail) jump off and open your parachute? No mention of what happens if something goes wrong while you are still attached to 2Million lbs of liquid hydrogen/oxygen. I remember the laughter at the time ....