Colonel/Doctor John Stapp on Dec. 10, 1954, the JATO rocket-propelled Sonic Wind 1 tests the effects of extreme acceleration and deceleration on the human body. The sled blasted from zero to 632 mph and back to zero along a mere 3,500 feet of track, subjecting Stapp to a monumental 46.2 G https://i.imgur.com/u8O8t... https://youtu.be/3UEYxf4f...
