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    Re: Golden Globe Race Navigation
    From: Francis Upchurch
    Date: 2017 Jan 10, 09:45 -0800

    Thanks Jorge,

    As far as I can remember (correct me if I'm wrong) Moitessier was not shipwrecked as a result of navigation errors. Joshua was wrecked at anchor, I think.

    If SW  time signal is going to be unreliable in this race, perhaps they should take a compulsory Frank  lunars course?

    I reckon they could probably manage with the abbreviated Thompson clearance method and logs (or a Fuller slide rule,still available in 1960s ,no calculators allowed).All of this could have been available in the 1960s, although no-one used it then.

    Even if they are 30 nm out due to time inaccuracy/lunatic longitude, this should be ok if they give any sharp rocks at Cape Horn and Good Hope a wide enough berth of over 30nm?

    Best wishes

    Francis

       
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