Weems Mark II Plotter

Weems developed this simple but effective plotter for aeronautical charts in 1935. It remains the most popular aviation plotter in the United States. Richard Byrd used this one on his Antarctic expeditions. 

Caption:
Weems developed this simple but effective plotter for aeronautical charts in 1935.
Type: Artifact
Image Date: 2013
Credit: National Air and Space Museum, Smithsonian Institution.
Origin: National Air and Space Museum, Smithsonian Institution.
Creator: Eric Long
NASM2013-00813
Navigators & Inventors
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Weems developed this simple but effective plotter for aeronautical charts in 1935.