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Interesting. I know Navy vessels do this [1] but in their case, the motivation is to trap machinery noise and reduce the sonar profile of the vessel. [1] http:
by quanticle 12y ago
Interesting. I know Navy vessels do this [1] but in their case, the motivation is to trap machinery noise and reduce the sonar profile of the vessel.
[1] http://en.wikipedia.org/wiki/Prairie-Masker http://en.wikipedia.org/wiki/Prairie-Masker
- zaroth 12y agoArticles say an 'unexpected benefit' is reduced prop noise. They did study the effect of bubbles on prop efficiency and apparently it is minimal, but noise is reduced significantly.