+"Groton Connecticut USA" +1947 stock footage and images

United States submarine USS Corporal (SS-346) during GUPPY conversion

Greater Underwater Propulsion Power modification Program ( GUPPY ) being conducted by the United States Navy to enhance its submarines. U.S.submarine, the USS Corporal (SS-346) alongside a dock. Crew standing on deck. The submarine barely moving along the side of the dock. A radar antenna fastened to the conning tower. A sailor removes a vertical item from the deck and carries it forward as the sub slowly moves. View of a different, unidentified submarine at a dock. (Last frame of clip shows top of conning tower without radar antenna.) Crew members walk up a gangplank as they come aboard the submarine.