pl23_ship1616.jpg
![Balloon buoy combination with elevated radar reflector ship1616.jpg Balloon buoy combination with elevated radar reflector](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship1616.jpg)
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https://www.noaa.gov/media/digital-library-photo/pl23ship1616jpgDescription
Balloon buoy combination with elevated radar reflector. Probably a buoy used tocalibrate electronic navigation system for offshore surveying operations on theUSC&GS; Ship PATHFINDER
Collection
Sailing for Science