Container ship Emma Mærsk in Aarhus, September 5, 2006
|Operator:||A. P. Moller-Maersk Group|
|Port of registry:||Taarbæk, Denmark|
|Builder:||Odense Steel Shipyard Ltd, Denmark|
|Laid down:||20 January 2006|
|Launched:||18 May 2006|
|Acquired:||31 August 2006|
|In service:||31 August 2006|
|Identification:||ABS class no: 06151181
Call sign: OYGR2
IMO number: 9321483
MMSI number: 220417000
|Class & type:||Mærsk E-class container ship|
|Length:||397 m (1,302 ft)|
|Beam:||56 m (184 ft)|
|Draught:||16.02 m (52.6 ft)|
|Depth:||30 m (98 ft) (deck edge to keel)|
|Propulsion:||80 MW (109,000 hp) Wärtsilä 14RT-Flex96c plus 30 MW (40,000 hp) from five Caterpillar 8M32|
|Speed:||25.5 knots (47.2 km/h; 29.3 mph)|
1000 TEU (reefers)
|Crew:||13, with room for 30|
Emma Mærsk is the first container ship in the E-class of eight owned by the A. P. Moller-Maersk Group. When launched in 2006 she was the largest container ship ever built, and in 2010 she and her seven sister ships were among the longest container ships. Officially, she is able to carry around 11,000 twenty-foot equivalent units (TEU) or 14,770 TEU depending on definition. In May 2010, sister ship Ebba Mærsk set a record of 15,011 TEU in Tanger-Med, Tangiers.
She was built at the Odense Steel Shipyard in Denmark. In June 2006, during construction, welding work caused a fire within the superstructure. It spread rapidly through the accommodation section and bridge, which delayed her completion by six to seven weeks.
She was named in a ceremony on 12 August 2006, after Mærsk Mc-Kinney Møller's late wife. She set sail on her maiden voyage on 8 September 2006 at 02:00 hours from Aarhus, calling at Gothenburg, Bremerhaven, Rotterdam, Algeciras, the Suez Canal, and arrived in Singapore on 1 October 2006 at 20:05 hours. She sailed the next day for Yantian in Shenzhen, then Kobe, Nagoya, arriving at Yokohama on 10 October 2006, and returning via Shenzhen, Hong Kong, Tanjung Pelepas, the Suez Canal, Felixstowe, Rotterdam, Bremerhaven, Gothenburg to Aarhus, arriving on 11 November 2006 at 16:00 hours.
She appeared in headlines prior to Christmas 2006, when she was dubbed SS Santa because she was bound for the United Kingdom from China loaded with Christmas goods. The return journey to southern China was loaded with UK waste for recycling.
Her appearance in the news prompted the State Environmental Protection Administration in China to promise to "closely watch the progress of investigation into the dumping of garbage in south China by Britain". Ministry officials added that no official approval had been given to any company in the area to import waste.
Going eastwards on 1 February 2013, she suffered a damaged stern thruster and took on so much water in the Suez Canal that she became unmaneuvrable. Tugs, anchors and the wind took her to Port Said to offload 13,500 containers, drain her and be investigated by divers. She has not been in danger of sinking. On 15 February 2013, Maersk Line confirmed that she was about to leave Port Said under tow to a yard for further assessment and repair. On 25 February she reached the yard of Palermo, Italy, where she was scheduled to stay for four months. In August 2013, she was in service again after a DKK 250 million (roughly US$44.5m) repair.
Originally Maersk reported a capacity of 11,000 TEU (twenty-foot equivalent units) as the maximum capacity of fully loaded 14 ton containers, according to Maersk company's then method of calculating capacity, which, at her introduction into service, was about 1,400 more containers than any other ship. However, Maersk also acknowledges the standard method of defining capacity, stating 14,770 TEU.
By normal calculations, she has a capacity significantly greater than reported—between 13,500 and 15,200 TEU. The difference between the official and estimated numbers is because Maersk calculates the capacity of a container ship by weight (in this case, 14 tons/container), i.e. 11,000+ containers, of which 1,000 can be reefers. Other companies calculate capacity according to the maximum number of containers that can be carried irrespective of weight, always greater than the number calculated by the Maersk method.
On 21 February 2011, Maersk ordered a family of ten even larger ships from Daewoo, the Maersk Triple E class, with a capacity of 18,000 containers. A further ten ships were ordered in June 2011. The first was delivered in 2013.
Engine and hull
She is powered by a Wärtsilä-Sulzer 14RTFLEX96-C engine, the world's largest single diesel unit, weighing 2,300 tonnes and capable of 109,000 horsepower (81 MW) when burning 3,600 US gallons (14,000 l) of heavy fuel oil per hour. At economical speed, fuel consumption is 0.260 bs/hp·hour (1,660 gal/hour). She has features to lower environmental damage, including exhaust heat recovery and cogeneration. Some of the exhaust gases are returned to the engine to improve economy and lower emissions, and some are passed through a steam generator which then powers a Peter Brotherhood steam turbine and electrical generators. This creates an electrical output of 8.5 MW, equivalent to about 12% of the main engine power output. Some of this steam is used directly as shipboard heat. Five diesel generators together produce 20.8 MW, giving a total electric output of 29 MW. Two 9 MW electric motors power the main propeller shaft.
A special silicone-based paint, instead of biocides used by much of the industry, keeps barnacles off of the hull. This increases her efficiency by reducing drag while also protecting the ocean from biocides that may leak. The paint is credited with lowering the water drag enough to save 1,200 tonnes of fuel per year. The ship has a bulbous bow, a standard feature for cargo ships.
The turning diameter at 24 knots (44 km/h) is 0.81 nmi (1.50 km). The engine is near midship to make best use of the rigidity of the hull and to maximize capacity. When banking 20 degrees, the bridge sways 35 metres.
Her regular round trip is between northern Europe and the far east via the English Channel, the Strait of Gibraltar and the Suez Canal, calling at Ningbo, Xiamen, Hong Kong (westbound), Yantian (westbound), Algeciras (westbound), Rotterdam, Bremerhaven, Algeciras (eastbound), Yantian (eastbound), Hong Kong (eastbound), and Ningbo. As of April 2011[update], the schedule included Gdansk, Aarhus, and Gothenburg.
In internationally agreed Sulphur Emission Control Areas (SECAs) fuel with a maximum of 1.0%  sulphur is used, to be reduced to 0.1% in 2015. Reduced sulphur in the fuel affects the lubrificatory properties, which could lead to lower reliability, and higher costs for maintenance and repair in addition to purchasing the more expensive low-sulphur fuel.
In Europe, new rules regarding the operation of marine shipping will require ships to burn cleaner fuel. MARPOL Regulation 14 will limit global sulphur content to 0.5% in 2020, but a review of global fuel availability due to conclude in 2018 may delay the new regulation until 2025.
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- E-class successor
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