USS_Guavina;
http://www.navsource.org/archives/08/08362.htm
In 1951 the submarine force achieved another important milestone. Guavina (SS-362) used an experimental searchlight sonar to distinguish the sound signature of Seacat (SS-399) and the fleet tug Salinian (ATF-161) at ranges of 9-10 nm.
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{{Information |Description=USS_Guavina; http://www.navsource.org/archives/08/08362.htm In 1951 the submarine force achieved another important milestone. ''Guavina'' (SS-362) used an experimental searchlight sonar to distinguish the sound signature of ''S
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