Rocks & mirror

    WÄRTSILÄ Encyclopedia

    of Marine and Energy Technology

     

    What's a sacrificial anode, sagging sampson-post or scum valve?

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    A large reel with vertical axis used for storage of cables or flexible pipes onboard ofoffshore support vessels.
    DREDGING AND DREDGERS
    Dredging and dredgers
    Dredging is a displacement of soil, carried out under water. It serves several different purposes. One of the applications meets the need to maintain minimum depths in canals and harbours by removing mud, sludge, gravel and rocks.
    Active-fin stabilisers
    Active-fin stabilisers
    The reduction of rolling provides better fuel/speed performance on rough seas, enhances crew safety and possibly their efficiency. The roll amplitude can be reduced by passive devices, such as bilge keels, or by active devices...
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