A Removable Submarine Cover for Drydock No. 2 Modernizationby Ted Bobroski, Portsmouth Naval Shipyard, Philadelphia, United States,
Joseph J. Bonasia, Portsmouth Naval Shipyard, Philadelphia, United States,
Abstract: In order to provide balanced overhaul capability and flexibility in the 1990's and beyond, the Portsmouth Naval Shipyard in Kittery Maine, a major U.S. Navy submarine and overhaul repair facility has embarked on a modernization program for Drydock No. 2 to enhance its existing capability of overhauling SSN 688 Class and future Class submarines. Submarine overhauls require processes that need careful control of temperature and humidity. Weather has a big effect on the overhaul process: a submarine undergoing overhaul in an open drydock is subjected to production delays and work slowdowns due to freezing temperatures, snow, rain and wind. The modernization program will provide utilities, dockside shops, personnel spaces and weather protection for overhauls and repairs. The modernization focuses around a Removable Submarine Cover (RSC) that is composed of stackable modules that form a completely weatherproof and controlled environment for the overhaul process. They are installed once the submarine is drydocked and removed when the submarine overhaul is completed and ready for undocking.
Subject Headings: Submerging | Rehabilitation | Temperature effects | Freezing | Existing buildings | Humidity | Snow | Shipyards | North America | Maine | United States
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