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
    Name or NavList Code:
    Email:
       
    Reply
    A question of time or times
    From: Alan S
    Date: 2011 May 29, 14:51 -0700

    I thought I had found an error in the Nav and Jr Nav manuals used in Power Squadron courses, that being as follows.

    Respecting ZD's listed in Meridian Transit shots/reductions and other celestial body shots/reductions, the ZD's listed, dates were within the limits of Daylight Savings Time, Standard Times were used, without correction for DST to obtain UT.

    The above, I was told, applies to sights taken while "at sea", whereas respecting sights taking on land, say shooting from the beach, correction to ZD for DST should be made.

    Supposedly, this strange seeming, to me, situation arose from a dispute between the French and the British, some time, not sure as to how many years, back. I've looked through a couple of volumes of Bowditch that I have, without finding any reference to such discussions/arguments/agreements.

    While I will accept what I was told as correct, it coming from a competent instructor, could anyone here offer any clarification.

    Thanks in advance.

    Alan

    ----------------------------------------------------------------
    NavList message boards and member settings: www.fer3.com/NavList
    Members may optionally receive posts by email.
    To cancel email delivery, send a message to NoMail[at]fer3.com
    ----------------------------------------------------------------

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

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

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

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

    Email Settings

    NavList ID 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