Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Working a lunar
    From: Frank Reed
    Date: 2007 Sep 24, 22:31 -0400

    I wrote:
    "the idea that there will be an emergency situation where you would lose GMT
    with no means of recovery is pretty outlandish!"
    Peter, you replied:
    "Well, no. We don't agree this is outlandish at all. Pretty much par for the
    course, in our experience. Have sailed with 3 GPS units and had all 3
    inoperative at the same time, due to different issues."
    Of course the best backup for an integrated GPS system is a hand-held GPS
    receiver in a nicely sealed case (with spare batteries). But I didn't say
    GPS; I said GMT. How many times have you lost track of GMT?? Let's be
    empirical about this rather than theoretical: how many people do you know
    who have lost all track of Greenwich Time on an ocean-going vessel? How many
    times in the past 25 years has this happened to anyone in the world? Do you
    know of any real examples where there was an emergency in which someone lost
    track of GMT, had no wristwatch, no radio, BUT still had an excellent
    sextant and navigational tables? Maybe it's happened lots of times, and I
    just haven't heard. Maybe not.
    To post to this group, send email to NavList@fer3.com
    To unsubscribe, send email to NavList-unsubscribe@fer3.com

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site