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The Mercury Redstone 1 "Four Inch Flight", the failed launch that taught NASA how to reach space

Mercury Redstone 1 was meant to prove America could reliably launch a human rated capsule, but the rocket lifted just four inches and left a fully fueled vehicle sitting dangerously armed on the pad.
insider.si.edu

Mercury Project, Redstone Launch Vehicle Advanced Electrical Schematic Drawings

The Redstone engine is one of the most significant developments in US rocket technology. This collection consists of 36 pages of 17 x 11 inch schematic drawings of the Redstone launch vehicle's ...