Construction of Fleet Ballistic missile submarines in Groton, Connecticut. Skeleton hull of submarine under construction. Small hatch opening in the submarine. A man welds under the far side of the hatch in the hull. Cross bracings in the skeleton hull of the submarine. A worker uses a cutting torch and works on the submarine.
Construction of Fleet Ballistic missile submarines in Groton, Connecticut. Submarines under construction. A builder works on the skin of the submarine. Other workers working inside the submarine. Cross and vertical braces of framework of the submarine. Under section of the submarine. Wooden posts hold up the submarine on the ways. A man welds on the submarine. Ribbing and skin on the submarine.