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pl23_theb2252.jpg

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https://www.noaa.gov/media/digital-library-photo/pl23theb2252jpg

Description

The first Odessey Protractor.This instrument was used to plot intersecting ranges from two RAR stations.Invented while Herman Odessey attached to DISCOVERER.Variations of this instrument were used for plotting positions for over 60 years

Credit

C&GS; Season's Report Odessey 1929-60

Display Date

1929

Collection

Historic Coast & Geodetic Survey

Nautical Charting

Navigation

Radio Acoustic Ranging

Keywords

Charting

Navigation

Electronic

Radio-Acoustic Ranging