55th Anniversary of the sinking of USS Thresher

55th Anniversary of the sinking of USS Thresher
Today is the 55th anniversary of the sinking of the US Navy submarine USS Thresher (SSN-593). The first of its class, Thresher was supposed to be an innovative leap forward in submarine design and technology but several test runs uncovered technical problems and Thresher returned to Portsmouth Naval Shipyard in Read more
In blog Museum Blogson Apr 10 2018By Jeanne Willoz-Egnor