Marine Log - February 2008 - (Page 33)

formance of the hull form. An early decision in 2004 was to design the forthcoming IACS Common Structural Rules (CSR) for Tankers. The use of these rules resulted in the re-evaluation of the initial ABS Safehull Part B Dynamic Load Analysis (DLA) results against the new harmonized rules that came into effect in 2006. MULTIPLE YARD APPROACH REDUCES PROJECT RISK In a presentation at Marine Log’s Intelligent Shipbuilding 2007 last December, Alan Nierenberg made the point that the AHL design “affords numerous and substantial long term operational and commercial benefits, which have been well recognized and valued by AHL and its charterers over the past several years of evaluation.” According to Nierenberg, AHL’s module construction methodology is the extension and refinement of proven practices on numerous U.S. shipbuilding projects Module construction methodology and owner control of design, equipment procurement and contractors replicates best practices of major offshore projects, he says. AHL project team members have been at the center of implementing such design and construction methodology for the past thirty years Module construction at multiple shipyards affords numerous benefits and reduces project risk. • Concurrent construction at three facilities shortens overall project schedule and costs; • Avoids peak manpower demands at single facility; • Enables work scopes to be tailored to contractor expertise; • Affords geographic separation for increased resource availability • Reduces value of work exposed to any unforeseen event; • Reduces value of work concentrated at assembly shipyard; Project risk is reduced in the AHL Project by a reduced construction duration that sets a keel to delivery time of 19 months and launch to delivery time of four months. Will it all work? AHL has set itself some key project milestones. One measure of success will be how well it keeps to them. The ultimate test, of course, will be how well the delivered ships measure up to AHL Shipping and Shell expectations. ML Final module breakdown includes: main hull including bow structure, aft end structure, machinery power module, deckhouse, and main deck/cargo pipe rack www.marinelog.com FEBRUARY 2008 MARINE LOG 33 http://www.mptusa.com http://www.mptusa.com http://www.marinelog.com

Table of Contents Feed for the Digital Edition of Marine Log - February 2008

Marine Log - February 2008 Contents Editorial Second Thoughts Update Inside Washington Cruise Growth: Driven by Megaships and Europe Another Piece of the Short Sea Transport Puzzle Putting Together a More Advanced Jones Act Tanker Evolving Propulsion Options for Diesel Electric Ships In Search of Smarter Shipbuilding Seatrade Peview Events Newsmakers Tech News Contracts Website Directory Infodirect ML Marketplace Opinions

Marine Log - February 2008

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