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Chapter One APPLICATIONS Surface Ships Application of composite materials within the U.S. Navy’s surface ship fleet has been limited to date, with the notable exception of the coasmtainlehunter (MHC-51). Recently, however, there has been growing interest in applying composite materials to save weight; reduce acquisition, maintenance and life-cycle costs; and enhance signature control. The Navy is considering primary and secondary load-bearing structures, such as hulls, deckhouses and foundations; machinery components, such as piping, valves, pumps and heat exchangers; and auxiliary items, such as gratings, ladders, stanchions, ventilation ducting and waste handling systems. These applications have generated research and prototype development by the Navy to verify producability, cost benefits, damage tolerance, moisture resistance, failure behavior, design criteria, and performance during fires. [1-30] In certain areas, the needs of the Special Warfare community have served to accelerate the use of composite construction. Patrol Boats The Navy has numerous inshore special warfare craft that are mainly operated by the Naval Reserve Force. More than 500 riverine patrol boats were built between 1965 and 1973. These 32 foot FRP hulls had ceramic armor and waterjet propulsion to allow shallow water operation. Production of GRP patrol craft for the Navy has not always proven to be profitable. Uniflite built 36 special warfare craft, fi reportedly of GRP/Kevlar construction, to support SEAL operations in the early 1980s and has since gone out of business. The Sea Viking was conceived as a 35 foot multi- mission patrol boat with provisions for missiles. The project suffered major design Figure 1-26 SMUGGLER 384 Built by and fiscal problems, including an Smuggler Marine of Sweden [Jane’s unacceptable weight increase in the lead ship,High-Speed Craft] and eventually its builder, RMI shipyard of San Diego, also went out of business. Sweden’s Smuggler Marine has been producing boats similar to the one shown in Figure 1-26 since 1971. The Swedish Navy, Indian Coast Guard and others operate these vessels. Willard Marine has successfully been building boats for the U.S. Coast Guard and Figure 1-27 22-Foot Utility Boat (MK U.S. Navy for over 30 years. Some 700 II) Produced by Willard Marine, Inc. boats to 70 different government [courtesyofWillardMarine,Inc.] 29PDF Image | Marine Componsites
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