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    Re: Optimizing Ocean Current Crossings
    From: George Huxtable
    Date: 2001 Jul 10, 7:46 AM

    Yves Arrouye asked-
    >Anybody has the publication "Optimizing Ocean Current Crossings" by US
    >Sailing? They say:
    >        written specifically to assist in the crossing of major open ocean
    >currents in sailing yachts; an easy-to-use method for minimizing rhumbline
    >distance gained and/or minimizing distance lost when crossing a current en
    >route to a distant objective
    >And I wonder if it's worth the $15 or if it's something available somewhere
    I can't answer Yves' question. However, I can suggest an alternative source
    of information although, not being a practising ocean-crosser, I can't
    vouch for it in use at sea.
    This is "Ocean passages for the world", third edition, 1973. (NP 136)
    Published by the Hydrographer of the Navy , Taunton, UK. I think that this
    was the last edition to include sailing-vessel information.
    It includes large fold-out charts in a separate slip-case. As well as
    recommended routes for powered vessels there are charts for-
    World sailing ship routes.
    World- Tracks followed by sailing and auxiliary powered vessels.
    World- General surface current distribution.
    World climatic chart- January.
    World climatic chart- July.
    The volume should not be bought if those charts are missing.
    The information was never intended for yachtsmen, and the routes are based
    on the conditions that a 2000-ton merchant sailing vessel was expected to
    stand up to.
    Presumably, much of the contents was based on the pioneering research of
    Maury. There's likely to be a corresponding US publication.
    I had to pay �30 for my copy, a couple of years ago. So not cheap, but
    good. Provides a pleasant alternative to seagoing for armchair-bound
    George Huxtable.
    George Huxtable, 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
    Tel. 01865 820222 or (int.) +44 1865 820222.

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