USS Helena (SSN-725)
Ship
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USS Helena (SSN-725), a Los Angeles-class submarine, was the fourth ship of the United States Navy to be named for Helena, Montana. The contract to build her was awarded to the Electric Boat Division of General Dynamics Corporation in Groton,... Wikipedia
Launched: June 28, 1986
Construction started: March 28, 1985
Builder: General Dynamics Electric Boat
Length: 362′
Commissioned: 11 July 1987
Homeport: Norfolk, Virginia
Status: in active service