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NOAA Photo Library Image - ship4222

Figure 21. Silvertown Company sounder, a device very similar to the Belknap- Sigsbee sounder with one important difference. This sounder had a unique ballast release method which involved a knife cutting the line holding the ballast upon beginning of ascent. This device was used in cable laying surveys.

Image ID: ship4222, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco

Category: Oceanography/Historical instruments/

High Resolution Photo Available





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May 12, 2014