Frank W. Caldwell
Frank Walker Caldwell (1889–1974) was a leading American propeller engineer and designer. As the United States government's chief propeller engineer (1917–1928), he pioneered propeller engineering and propeller testing facilities and techniques. Working at Hamilton Standard Propeller Corporation, they won the 1933 Collier Trophy for his work on the controllable-pitch propeller. After 25 years of service, he retired in 1955 as director of the United Aircraft Corporation Research Division.
Frank W. Caldwell | |
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Frank W. Caldwell being congratulated on winning the 1933 Collier Trophy (visible in the background) for his work with Hamilton Standard on the controllable-pitch propeller. | |
| Born | December 20, 1889 Lookout Mountain, Tennessee, U.S. |
| Died | December 23, 1974 (aged 85) West Hartford, Connecticut, U.S. |
| Education | Mechanical engineering (B.S.) |
| Alma mater | University of Virginia Massachusetts Institute of Technology |
| Occupation | Aircraft propeller engineer |
| Known for | Variable-pitch propeller |
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| Children | Walter H. Caldwell (1924–2003) Frank W. A. Caldwell (1934–1962) |
| Parent(s) | Frank Hollis Caldwell Mary Ellis Nellie Walker |
| Awards | Collier Trophy (1933) Sylvanus Albert Reed Award (1935) |
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