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Description and technical details for ship engine, with photos, at official website for Emma Maersk ship. World’s Largest Diesel Engine- Emma Maersk’s Wärtsilä-Sulzer RTA96-C [permanent dead link ], 26 February 2019. The World's Most Gargantuan Diesel Engine, by Andrew Tarantola, 20 July 2011.
The engine is the largest reciprocating engine in the world. The 14-cylinder version first entered commercial service in September 2006 aboard the Emma Mærsk. The design is similar to the older RTA96C engine, but with common rail technology (in place of traditional camshaft, chain gear, fuel pump and hydraulic actuator systems).
The only straight-14 engine known to reach production is part of the Wärtsilä-Sulzer RTA96-C family of 6-cylinder to 14-cylinder two-stroke marine engines. This engine is used in the Emma Mærsk , which was the world's largest container ship when it was built in 2006.
In February 2011 Maersk announced orders for a new "Triple E" family of container ships with a capacity of 18,000 TEU, with an emphasis on lower fuel consumption. [4] They were 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); [5] Maersk had options to buy a further twenty ships. [6]
The engine models are identified by the cylinder bore diameter in centimeters, which as of 2024 range from 20 to 46 centimetres (7.9 to 18.1 inches). The smallest engine series, Wärtsilä 20, produces a modest 200 to 220 kW (270 to 300 hp) per cylinder and is available in inline configurations from 4 to 9 cylinders.
The E class comprises eight 14,770 twenty-foot equivalent unit (TEU) container ships.Each sister ship bears a name beginning with the letter "E". Until 2012, they were the largest container ship ever constructed, and are among the longest ships currently in use at 398 metres (1,306 ft) long and 56 metres (184 ft) wide.
When launched in 2005, she was claimed by her owner to be the world's largest container ship, [2] a title she held until Emma Mærsk was launched in 2006. Colombo Express holds 8,749 twenty-foot equivalent units (TEU), 730 refrigerated (reefer) TEUs, is 335 metres (1,099 ft) long, and has a beam , or width, of 43 metres (140 ft).
Eleonora Mærsk is a sister ship of Emma Maersk [3] and has a maximum speed of 27 knots (50 km/h; 31 mph). The ship was specifically designed to sail through the Asian trade route, and has the largest combustion engine ever built. [4] Its engine is the equivalent of 1,000 family-sized cars.