http://www.nn.northropgrumman.com/news/2008/041208.html To view a slide show of the Keel Ceremony click on: http://www.nn.northropgrumman.com/vcs/ssn779keel/index.html Keel Ceremony A structural keel is a large beam about which the hull of a ship is built. The keel runs down the middle of the ship, from the bow to the stern , and serves as the