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: Flying to Antarctica
    From: David Pike
    Date: 2019 Jan 21, 11:40 -0800

    Brad Morris you wrote: I did encounter the grid referenced to meridian lines in the 1949 text.  They indicated that the grid was made by drawing a line parallel to the 0 to 180th meridian.  The direction away from the North Pole along the 180th meridian is "grid north".   

    It’s called the Greenwich Grid.  It was invented by Wg Cdr Kenneth C Maclure DFC RCAF whilst Oi/c Testing and Development at the Empire Air Navigation School (EANS) at RAF Shawbury in 1944/45.  The technique was first used on the pioneering RAF trans-polar flights in the Aries Lancaster (Man is not Lost - Dickie Richardson p 258).  You can find Maclure’s paper here: Maclure, Wing Commander K. C., "THE ARCTIC FLIGHTS OF THE LANCASTER "ARIES," MAY 1945", NAVIGATION, Journal of The Institute of Navigation, Vol. 1, No. 1, 1946, pp. 3-7.  I’m struggling read it through the RIN website, so I'm not sure how much it describes the grid, but IoN members can get it through theirs https://www.ion.org/publications/abstract.cfm?articleID=102141 .
    The technique was still being taught when I completed the Staff Navigator Course in 1973.  I could try and make some sense of my hand written notes at the time, but far better to read about it in Ch14 of the US Flight Navigator Manual available on-line here
    https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/  .  DaveP

    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