USS Thresher SSN 593
The second USS Thresher (SSN-593) was the lead ship of her class
of nuclear-powered attack submarines in the United States Navy. Her loss at sea
during deep-diving tests in 1963 is often considered a watershed event in the
implementation of the rigorous submarine safety program SUBSAFE.
The contract to build
Thresher was awarded to Portsmouth Naval Shipyard on 15 January 1958, and her
keel was laid on 28 May 1958. She was launched on 9 July 1960, sponsored by
Mrs. Frederick B. Warder (wife of the famous Pacific War skipper), and
commissioned on 3 August 1961, Commander Dean L. Axene commanding.
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