Welcome to the NavList Message Boards.

NavList:

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

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: Working a lunar
    From: Peter Fogg
    Date: 2007 Sep 25, 13:21 +1000
    Frank has responded:

    Of course the best backup for an integrated GPS system is a hand-held GPS
    receiver in a nicely sealed case (with spare batteries).
     
    Sure. Such was one of the 3. And don't those clever little things just chew up those little batteries bigtime!

    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?
     
    Hey, how do you define 'ocean-going' ? Once I leave the coast that's me, I guess. Now where did I put my watch?

    How many
    times in the past 25 years has this happened to anyone in the world?
     
    Quite a few, I would guess. I personally know people who've sailed off to Lord Howe from Sydney (heading northeast into the vast Pacific) with no more navigational preparation than a compass bearing (luckily for them the twin peaks can be seen from a long ways away). Not everyone is as well organised as you damn yankees.

    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?
     
    Bligh had a sextant but no charts. Nah, can't think of any. Is this important?

    Maybe it's happened lots of times, and I
    just haven't heard. Maybe not.
     
    Hey Frank, while we have your attention, how do you know 'H' as in 'Ha' represents hauteur and not simply height?

     

    --~--~---------~--~----~------------~-------~--~----~
    To post to this group, send email to NavList@fer3.com
    To unsubscribe, send email to NavList-unsubscribe@fer3.com
    -~----------~----~----~----~------~----~------~--~---

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    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:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    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