Huntington Ingalls Industries, Inc. (NYSE:HII) said that its Ingalls Shipbuilding division celebrated the "start of fabrication" of the U.S. Coast Guard's fourth National Security Cutter, Hamilton (WMSL 753). The shipbuilding milestone signifies that 100 tons of steel have been cut and fabricated utilizing a robotic plasma arc cutting machine at Ingalls' steel fabrication complex. Ingalls received the $480 million contract to build Hamilton in November 2010. The ship is scheduled to be delivered to the U.S. Coast Guard in the fall of 2014.