Dr. Fritz K. Mueller (1907 – 2001 Huntsville, Alabama, USA) was a German engineer.
Later on, he worked on the guidance and control system for the A3 test rocket, the A5, and the A4 (V2) ballistic missile.
[3] Under Project Paperclip, Mueller emigrated to the United States on 16 November 1945 with the Argentina group.
There, he worked on developing guidance systems for the PGM-11 Redstone, PGM-19 Jupiter, MGM-31 Pershing, and the Saturn I missiles.
[4] In 1960 Mueller left NASA for private industry.