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    QE2 grounding
    From: Nigel Gardner
    Date: 2001 Aug 30, 5:20 AM

    The MAIB report certainly pointed up the lack of detailed knowledge about
    squat, although it has been known about for a very long time. For example,
    Thames barges in the 19th and early 20th C. used to skate over large areas
    of sand in order to beat tides and competitors, and spoke of the vessel
    'smelling the bottom' as the change of trim caused by squat was felt by the
    master. The amount of squat is a function of type of sea bottom, underbody
    shape, speed of vessel, speed of tidal flow (and probably the price of lard
    as well). If I remember rightly, what caught out QE2 was that the general
    depth around Rude's rock was not particularly shallow and that the squat
    was much more than had been anticipated

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