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    Re: HO 214 History
    From: David C
    Date: 2021 Oct 30, 15:45 -0700

    As soon as I  clicked send on my previous rambling post I realised I should have wriiten something more concise. There is evidence that the UK and US cooperated in the publication of  navigational publications:

    1618 published in the UK.  Published in the US as HO218 as a war emergency measure.

    HO214 published in the US.  Published with permission in the UK as HD486.

    But.........Bowditch and HO200  copied Percy Davis's Haversine tables without permission. Davis was clearly upset.

       
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