Sea-Land D-7 class
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The D-7 class is one of three container ships existing class of the American shipping company Sea-Land Service , now American US by the shipping company Horizon Lines is used.
history
The ships were ordered by the Sea-Land Corporation on October 22, 1984 and were to be delivered between October 1986 and May 1987. The series, consisting of three units and costing around 180 million US dollars, was built between 1985 and 1987 by the Bay Shipbuilding yard in Sturgeon Bay . After the delivery of the last of the three ships, the shipbuilding industry in the United States encountered for the first time since the founding of the state that not a single merchant ship was under construction.
The ships were built for year-round service between Tacoma , Anchorage , Kodiak and Dutch Harbor and are still on this route to this day. After the CSX Corporation took over Sea-Land in 1986, the ships initially continued to operate under their traditional Sealand names. In March 1999, CSX split the Sea-Land business into three parts: Global Liner Division, Sea-Land Domestic and Terminal Operations. After Maersk took over Sea-Land's Global Liner Division in November 1999, the three ships remained part of Sea-Land Domestic, which was continued by CSX. The ships were given names in which the preceding "Sea-Land" was replaced by "CSX". In 2001 CSX Lines founded the subsidiary Horizon Services Group and in February 2003 CSX was sold to the Carlyle Group, which continues to operate the shipping business under the name Horizon Lines. The three D-7 ships were then renamed again, with the preceding "CSX" being replaced this time by "Horizon".
technology
The ships have superstructures arranged aft above the propulsion system. All holds are in front of the deckhouse, are equipped with cell guides and are closed by pontoon hatch covers. The container capacity is around 1400 TEU and there are 168 refrigerated container connections available. With a homogeneous load with fourteen-ton containers, the capacity is reduced.
The main drive consists of a nine-cylinder marine diesel engine of the type 7L70MC, built by Mitsui in Japan under a MAN B&W license , with an output of around 20,000 hp, which acts directly on a fixed propeller. The ships can thus reach a speed of around 20 knots . The energy supply is ensured by two auxiliary diesels with an output of 2000 kW each and two auxiliary diesels with an output of 1200 kW each. A bow thruster is available to support the docking and casting off maneuvers .
The ships
| D-7 class | |||||
|---|---|---|---|---|---|
| Building name | Build number | IMO number | Keel laying, launching, delivery |
Later names and whereabouts | |
| Sea-Land Anchorage | 735 | 8419142 | August 14, 1985 May 31, 1986 July 10, 1987 |
CSX Anchorage (2000) → Horizon Anchorage (2003) → Matson Anchorage (2016) | |
| Sea-Land Tacoma | 736 | 8419154 | November 6, 1985 September 27, 1986 September 4, 1987 |
CSX Tacoma (2000) → Horizon Tacoma (2003) → Matson Tacoma (2016) | |
| Sea-Land Kodiak | 737 | 8419166 | June 3, 1986 December 20, 1986 November 9, 1987 |
CSX Kodiak (2000) → Horizon Kodiak (2003) → Matson Kodiak (2015) | |
| Data: Equasis, large tonnage | |||||
literature
- Cudahy, Brian J .: Box boats . How container ships changed the world. Fordham University press, New York 2006, ISBN 0-8232-2568-2 .
- Bay Shipbuilding in The New York Times , October 24 1984 (English)
- Shipbuilding and repair in US-Shipyards in Maritime Reporter / Engineering News , June 1988 (English)
Web links
- Overview of Alaskadienstes of Horizon Lines (English)
- Construction list at shipbuildinghistory.com (English)
Individual evidence
- ↑ Equasis homepage (English)
- ↑ grosstonnage homepage (English)