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The Maersk Triple E class container ships comprise a family of very large container ships (More than 18,000 TEU). With a length of , when they were built, they were the largest container ships in the world, but were subsequently surpassed by even larger ones such as CSCL Globe, MSC Zoe and MSC Oscar. In February and June 2011, Maersk awarded Daewoo Shipbuilding two US$1.9 billion contracts ($3.8bn total) to build twenty of the ships. The name "Triple E" is derived from the class's three design principles: "Economy of scale, Energy efficient and Environmentally improved". These ships are expected to be not only the world's longest ships in service, but also the most efficient container ships per twenty-foot equivalent unit (TEU) of cargo. The ships are long and wide. While only longer and wider than E-class ships, the Triple E ships are able to carry 2,500 more containers. With a beam of , they are too wide to cross the Panama Canal, but can transit the Suez Canal. One of the class's main design features is its dual ultra-long stroke two-stroke diesel engines, driving two propellers at a design speed of . Slower than its predecessors, this class uses a strategy known as slow steaming, which is expected to lower fuel consumption by 37% and carbon dioxide emissions per container by 50%. The Triple E design helped Maersk win a "Sustainable Ship Operator of the Year" award in July 2011. Maersk plans to use the ships to service routes between Europe and Asia, projecting that Chinese exports will continue to grow. European-Asian trade represents the company's largest market; it already has 100 ships serving this route. Maersk hopes to consolidate its share of this trade with the addition of the Triple-E class ships. ==Orders and history== In February 2011, Maersk announced orders for a new "Triple E" family of containerships with a capacity of 18,000 TEU, with an emphasis on lower fuel consumption. They will be built by Daewoo Shipbuilding & Marine Engineering (DSME) in South Korea; the initial order, for ten ships, was valued at US$1.9 billion (2 trillion Korean Won); Maersk had options to buy a further twenty ships. In June 2011, Maersk announced that 10 more ships had been ordered for $1.9bn, but an option for a third group of ten ships would not be exercised. Payment of the ship is "tail-heavy": 40% while the ship is being built, and the remaining 60% paid on delivery.〔(Pay on delivery ) ''Dagbladet Børsen'', 22 February 2011. Accessed: 14 August 2011.〕 Deliveries are scheduled to begin in 2013. Maersk negotiated a two-year warranty, where the standard is one year.〔 Prior to 2010 many Maersk containerships had been built at Maersk's Odense Steel Shipyard in Denmark, but Asian builders are now considered more competitively priced. Maersk had approached several different builders in Asia, having ruled out European shipbuilders (for cost reasons) and Chinese (for technology reasons).〔(Maersk orders 10 green mega-boxships ) ''The Motorship'', 21 February 2011. Accessed: 22 February 2011.〕〔(New Mærsk Triple-E ships worlds largest and most efficient; waste heat recovery and ultra long stroke engines contribute to up to 50% reduction in CO2/container moved ) ''Dispatch Control'', 21 February 2011. Accessed: 22 February 2011.〕 DSME builds three Triple-Es at a time, and it takes little more than a year to produce a ship.〔 Investment in more-efficient ships helped Maersk win the "Sustainable Ship Operator of the Year" award from Petromedia Group's on-line publication sustainableshipping.com in July 2011. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Maersk Triple E class」の詳細全文を読む スポンサード リンク
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