Insertion of the Multi-Mission Module into the hull of the Jimmy Carter.  The module is being inserted into the hull of the Carter.  To the left is the bow of the Carter, with the sail visible under scaffolding.  To the right is the stern section, with reactor and propulsion spaces.  The submarine is inside the Electric Boat Land Level Building Facility.  The hull at the bottom of the photo is the Virginia, first of a new class of SSNs.