Plastics discarded for steel

摘要

The US Navy is to switch materials used in the construction of the last zumwalt class destroyer after concerns at the high cost of composites used to build the superstructure of the first two ships. The subsequent award of a US$212 million contract to Bath Iron Works for the design and build of a steel deckhouse and hangar, and construction of aft Peripheral Vertical Launching System (PVLS) modules for the future USS Lyndon B Johnson (DDG 1002), has worrying implications for the future of rival Huntington Industries' composites facility.