HII Newport News Shipbuilding Mounts Caisson Unit into its New JMAF Facility

Huntington Ingalls Industries’ (HII) Newport News Shipbuilding division has lifted and mounted a 400-metric ton caisson unit into its new Joint Manufacturing Assembly Facility (JMAF).

The specialized fixture will “revolutionize how we build submarines for our country,” said Matt Needy, Newport News’ vice president of operations. “A fixture of this magnitude allows us to significantly improve construction efficiencies and shorten our production span times in support of our current Virginia-class submarine programs and future work on the Columbia-class submarine program.”

The massive fixture, standing over 80 feet high, is scheduled to be fully operational later this year. It will first be used to streamline the construction of the bow module for the Virginia-class submarine Utah (SSN 801).

The JMAF, which opened in 2017, was designed to support current and future production work on aircraft carriers and submarines.

Huntington Ingalls Industries

Huntington Ingalls Industries is America’s largest military shipbuilding company and a provider of professional services to partners in government and industry.

For more than a century, HII’s Newport News and Ingalls shipbuilding divisions in Virginia and Mississippi have built more ships in more ship classes than any other U.S. naval shipbuilder.

HII’s Technical Solutions division provides a wide range of professional services through its Fleet Support, Integrated Missions Solutions, Nuclear & Environmental, and Oil & Gas groups.

Headquartered in Newport News, Virginia, HII employs nearly 37,000 people operating both domestically and internationally.



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