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Driftline navigation system

  • US 20100023262A1
  • Filed: 07/24/2008
  • Published: 01/28/2010
  • Est. Priority Date: 07/24/2008
  • Status: Abandoned Application
First Claim
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1. A navigation aid allowing a user to predict the drift of a vessel, comprising:

  • a. providing a position determining device capable of accurately determining said vessel'"'"'s position;

    b. providing a graphical display capable of displaying said vessel'"'"'s position to said user and further capable of displaying graphical elements;

    c. providing a computing device having an associated memory;

    d. determining a first position of said vessel at a first time;

    e. determining a second position of said vessel at a second time which is later than said first time;

    f. computing an actual drift vector starting at said first position and a first heading representing said change between said first position and said second position;

    g. computing a projected drift vector having a start point lying on said first position and a second heading computed by subtracting 180 degrees from said first heading;

    h. saving said projected drift vector in said memory;

    i. at some point specifying a target; and

    j. displaying said projected drift vector on said graphical display by placing said projected drift vector start point on said target and extending a drift line away from said target along said second heading.

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