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    Re: How Many Chronometers?
    From: Jeremy C
    Date: 2009 May 6, 19:42 -0700

    > Bruce Stark, when he was contributing to the list, offered a wonderful 
    exposition on how to recover GMT via lunars. �The details are found in a 
    NavList posting whose number I cannot remember. �I did keep a file of it 
    though, and link it herein. �All the way from not knowing any time to GMT! I 
    have not exercised the method and can offer no insight as to how accurately 
    one can recover GMT from it. �Based upon the source, however, I suspect it 
    works quite well!
    > Best Regards
    > Brad
    > Linked File:https://www.NavList.net/imgx/Recovering-GMT.doc
    I've used the Stark Lunar tables with good results.  As long as you
    know the hour and a decent DR, you can use the tables to determine GMT
    via Lunars to the accuracy of your shooting ability.  They take a
    while to reduce the sight however.
    What I wonder is what ships did in the age of steam before the age of
    common time ticks (say the early part of the 20th century).  I haven't
    seen any ships with more than 2 chronometers on it, but my shipping
    experience is relatively short.  When I worked with chronometers, we
    kept an error and rate log.  The chronometers were serviced
    periodically and reset at that point. Nothwithstanding the early age
    of chronometers, what was the time solution in a more modern age?
    Does anyone have any data on this?
    Navigation List archive: www.fer3.com/arc
    To post, email NavList@fer3.com
    To , email NavList-@fer3.com

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