According to the terms of the contract announcement, General Dynamics' Bath Iron Works subsidiary will design and build the steel superstructure (specifically, the deckhouse and a hangar) for the new Zumwalt-class guided missile destroyer USS Lyndon B. Johnson (DDG 1002). Bath will also construct an aft peripheral vertical launching system (PVLS) from which the destroyer's missiles will launch.
PVLS is a deviation from the centralized missile magazines with which older Arleigh Burke-class (DDG 51) destroyers are equipped. It consists of separated four-cell launchers along the hull of the Zumwalt-class ships, and is designed to enhance the ships' survivability, by not putting all the boomsticks in one place.
The corresponding PVLS on the Johnson's sister ship, the USS Michael Monsoor (DDG 1001), was built by General Dynamics rival Huntington Ingalls.
General Dynamics' work under this contract should be complete by December 2016.
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