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April 2011www.sname.org/sname/mt Published by the Society of Naval Architects and Marine Engineers 601 Pavonia Avenue, Jersey City, NJ 07306 Phone: 201-798-4800 Fax: 201-798-4975 www.sname.org/sname/mt Edward Comstock President ecomstock@sname.org Erik Seither Executive Director eseither@sname.org Susan Evans Grove Publications Director sevans@sname.org Douglas R. Kelly Editor dkelly@sname.org Alan Rowen Book Review Editor arowen@sname.org Dave Weidner, Advertising Sales advertising@sname.org Tommie-Anne Faix, Publications Sales Associate tfaix@sname.org Editorial Advisory Board Design Bates Creative Group, Silver Spring, MD Ocers of the Society Edward Comstock, President Erik Seither, Executive Director Bruce Rosenblatt, Treasurer Regional Vice Presidents 2011:Central & Gulf: Frank G. Bercha Atlantic South: William M. Hayden Paci?c: William B. Hale Atlantic North: John Volc International: Stavros Hatzigrigoris 2012: Paci?c: Gary Thompson Atlantic North: William Caliendo 2013: Central & Gulf: Joseph H. Comer, III Atlantic South: H. Paul Cojeen International: John Kokarakis Publication in (mt) Marine Technology does not constitute an endorsement of any product or service referred to, nor does publication of an advertisement represent an endorsement by the Society of Naval Architects and Marine Engineers or the magazine. All articles represent the viewpoints of the authors and are not necessarily those of the Society of Naval Architects and Marine Engineers, or the magazine. Subscriptions: (mt) Marine Technology is circulated to all members of the Society as a portion of their dues allocation. Non-member subscriptions are $120 annually for the U.S. and possessions; single copies are $35. For international non-members, subscriptions are $130 annually; single copies are $35. (mt) Marine Technology is dedicated to James Kennedy, 1867-1936, marine engineer and longtime member of the Society, in recognition and appreciation of his sincere and generous interest in furthering ship design, shipbuilding, ship operation, and related activities. (from the editorial board ) April 2011This is an exciting time for world navies. Internationally, the introduction of new cor- vettes and frigates, along with cost-eective patrol vessels, bridge naval and commercial standards. Worldwide competition is erce, leading to strong technical and program- matic innovation. In the United States, the navys Five Year (FY 11 ? 15) Shipbuilding Plan includes a total of 50 vessels, of which more than half would be considered small naval surface combatants and naval auxiliaries, including the littoral combat ship (LCS) and the joint high speed vessel (JHSV). e December 2010 award of 10 LCS each to the Lockheed Martin and Austal teams and the JHSV contract?5 vessels awarded with options for up to 10 vessels total to Austal?shows the navys commitment to these types of vessels. eir speed, their func- tionality, and their cost make them attractive assets for the navy of the future. Over the past decade, small surface combatant and patrol vessel programs have been very active outside the United States, as well. e Peoples Republic of China developed the Heboi class with missions similar to that of the LCS. Small destroyer construction continues in South Korea, while European navies and shipbuilders have developed multi-purpose patrol vessels, corvettes, and frigates in Denmark, the Netherlands, Germany, France, Spain, Italy, and Great Britain. Foreign military sales to nations in Africa, the Middle East, Southeast Asia, and South America are an important source of revenue and workplace stability for European shipbuilders. is issue of (mt) magazine oers a deep dive into the challenges, technical specications, and opportunities surrounding small surface combatants and patrol vessels. Our Vessel Report spotlights the Royal New Zealand Navys oshore patrol vessels, Otago and Wellington , latest- generation ships that perform surveillance and protection duties in New Zealands coastal waters. Our cover model, the United States Navys SEALION (SEAL insertion, observation, neutralization) vessel, oers technology innovation and demonstration for the development of future special forces craft. Much, much more ats just for starters. Shipbuilding standards are also addressed in this issue, with a detailed look at a joint eort by NAVSEA and the American Bureau of Shipping aimed at bringing com- mercial best practices and the latest technical guidance to the specialized needs of naval combatants. Lessons learned from these ongoing programs are helping to craft the next gen- eration of naval vessel rules. NAVSEA has also been addressing the ship design process through a series of workshops, and were pleased to bring you an in-depth report on this program. Developed in conjunction with the Oce of Naval Research and the Department of Defense High-Performance Computer Modernization Oce, these events focus on the activities that take place during feasibility stud- ies and preliminary design of a warship. e result is a ship design process model that is being used to train the workforce, prioritize R&D investments, and help plan future design eorts. And because waterjet propulsion is becoming an increasingly popular choice for small, high-speed combatants, the techies at Rolls-Royce Naval Marine (which supplies the propul- sion system for Lockheed Martins Freedom class of the LCS) check in with a tour of high power density waterjet propulsion systems. Add to this our MT Notes? entries on welding of thin ship panel structures, N-class divisions for structural re protection, and the challenges of man- ning small combatants, and we think this issue will challenge your thinking as it expands your knowledge base. Norbert Doerry and Vicky Dlugokecki SNAME (mt) Editorial Board Balancing Cost and Capability Jay P. Carson, Chair Rod Allan Chris Cikanovich Chris Dlugokecki Vicki Dlugokecki Norbert DoerryJay Edgar Andrew Harville Peter Tang Jensen Keith Michel Peter Noble Jeom Paik Hans Payer Erik SeitherMatt Tedesco