CONTAINER SHIPS

英文CONTAINER SHIPS

中文 (征集中)

英文释义

Ships intended exclusively for the carriage of containers and equipped with the appropriate facilities. Such vessels have cellular holds with cell guides attached to bulkheads and container foundations. They can be provided with lift-away hatch covers (the usual solution for bigger vessels), or with folding hatch covers that need more space on deck when open. Deck containers are carried up to 7-high and secured by system of lashing. The capacity of a container ship is expressed in TEU that is twenty-foot equivalent units. Two four-stroke diesel engines Wärtsilä 9L46D (2×10,395kW) drive a single CP propeller through a twin-in/single-out reduction gear. If the vessel is operating at low speed or in light ship conditions it can run just one engine. The ship is provided with three auxiliary engines Wärtsilä 8L20, 3x1600kW, and one shaft generator 1300kW. Originally developed for the U.S. for Puerto Rico trade, the container vessel was slowly emerging in the maritime area in the 1950s. Conversions of existing tonnage preceded the first purpose-built containership the Gateway City designed in 1956/7. The development in the container market was slow until 1968, when deliveries reached 18 vessels. Ten of them had a capacity of 1000-1500TEU. In 1972, the first vessels with a capacity of more than 3000TEU were delivered from the German HDW shipyard. They were the largest container ships until the delivery in 1980 of 4100TEU NEPTUNE GARNET. When the size of container ships increased to 4500-5000TEU, it was necessary to exceed the Panama maximum breadth of 32.3m and in 1988 the first post-Panamax container ship was built. In 1996 the REGINA MAERSK with an official capacity of 6600TEU started a new era. The maximum size of container ships has rapidly increased to 7200TEU in 1998, and up to 9600TEU for ships delivered in 2006. Recent years have seen the advent of very large container ships with capacity exceeding 13,000TEU

中文释义

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