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How many ship anchors and anchor chains are equipped for the ship
2023-02-22
The allocation of marine anchor and marine anchor chain for seagoing ships shall be selected according to the type of ship, the water area of navigation, and the number of outfitting of the ship according to the data listed in the specification.
Equipment number, or the number of vessels, is a parameter reflecting the wind and current forces that the hull can be subjected to.
The equipment of cargo ships, bulk cargo ships, oil tankers, trailing suction dredgers, ferries, etc. shall be selected according to N. According to the outfitting table, the number of ship anchors, the weight of each ship anchor, the grade, total length and diameter of the ship anchor chain are obtained.
If the ship should be equipped with an odd number of total sections of marine anchor chain, the right ship anchor should be equipped with one more section. Generally, each main ship anchor of 10000 tonnage cargo ships is equipped with at least 10 marine anchor chains. For ships in general unlimited navigation area, each main ship anchor shall be equipped with 12 marine anchor chains. In addition, at least one marine anchor shackle and four connecting shackles or chain links shall be reserved on the ship, and another large shackle for mooring and floating of the marine anchor chain shall be prepared. Grade AM1 chain with tensile stress less than 400N/mm2 cannot be used for marine anchor with large grip. AM3 chain is only applicable to marine anchor chain with chain diameter of 20.5mm or above.
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