Position and Course Plotting Devices

Shown here are several other devices (see also the page on the Position Plotter) designed for use in plotting a course in a submarine hunt.

Photos courtesy of the Harvey Hayes Family Archives. Thanks to Roy Manstan for the scans, and for arranging permission to post them in The Subchaser Archives.

Photo Set - click to view large versions: 
Distance Indicator, Harvey Hayes Family Archives
Protractor, Harvey Hayes Family Archives
Sub Speed Computer, Harvey Hayes Family Archives