Special Collections Series -- Naval Consulting Board and Wartime Research Papers
[MF03-F] Range and Direction Finders (1915)
This folder contains technical notes prepared by phonograph experimenter Absalom M. Kennedy for chief engineer Miller Reese Hutchison. They pertain to the design and operation of a combined mechanical-electric range and direction finding system to aid in gun targeting.
All of the documents have been selected.
Courtesy of Thomas Edison National Historical Park.