Human Guinea Pigs - The Human Rock

Human Guinea Pigs - The Human Rock

Available on Prime Video
In the 1950s, jet engines took flight to the limits of the upper atmosphere - but the problems were many. No one knew if a pilot could survive emergencies at these extreme altitudes. Witness all the incredible human testing performed by the military to develop high-altitude escape systems. See the amazing 14-mile drop of a man through the sound barrier with just a thermal suit and a parachute.