Before revision: Changes include having the hull cut into three sections, with the center section being recycled and the other two joined with three new sections, manufactured by Electric Boat, extending the length of the boat by 23 m (76 ft).
After revision: Changes include having the hull cut into three sections, with the center section being recycled and the other two joined with three new sections, manufactured by Electric Boat, extending the overall length by 23 m (76 ft).