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pl23_theb2242.jpg

Graphic demonstrating Radio Acoustic Ranging (RAR)

Image

Download ( 544 KB )

Permalink

https://www.noaa.gov/media/digital-library-photo/pl23theb2242jpg

Description

Graphic demonstrating Radio Acoustic Ranging (RAR).Developed in 1923, RAR was the first non-visual navigation system.Combined velocity of sound in water with radio to obtain fix.

Credit

NOAA Central Library

Display Date

1931

Location

Georges Bank

Collection

Historic Coast & Geodetic Survey

Nautical Charting

Navigation

Radio Acoustic Ranging

Keywords

Charting

Navigation

Electronic

Radio-Acoustic Ranging