Became Project Director of Guided Missile Development at Fort Bliss. There his work led to “Project Bumper” which gave the V-2 its greatest achievement when it boosted a “WAC Corporal” missile’s instrument package payload 224 miles into space.
Named director of the Development Operations Division of the Army Ballistic Missile Agency, with direct responsibility for the “Jupiter” intermediate range missile.
In April 1960, he became director of the George C. Marshall Space Flight Center at Huntsville for NASA.
Led team that developed the Saturn V with his team which allowed Apollo 5 to travel to the moon in 1968.
Helped found the National Space Institute in 1975 and served as its first president.