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: refraction at higher altitudes on land?
    From: Cliff Sojourner
    Date: 2002 Feb 28, 10:22 -0800

    HO 249 and HO 229, and a bunch of other fun stuff, are available on-line as
    .pdf files.  you can find them here:
    
    http://pollux.nss.nima.mil/pubs/
    
    for refraction corrections, look at table 6 in
    
    http://pollux.nss.nima.mil/NAV_PUBS/SRTA/Pub249/Vol_2/SRTA_flier.pdf
    
    Cliff
    --
    these are the good old days
    Cliff Sojourner          cls{at}employees.org
    
    ----- Original Message -----
    From: "Nigel_Gardner" 
    To: 
    Sent: Thursday, February 28, 2002 07:11
    Subject: Re: refraction at higher altitudes on land?
    
    
    > There is a table in HO 249 giving refractions for altitude, which I could
    > copy for you, but that assumes you are using an artificial horizon. The
    Air
    > Almanac has (or did have) a table  for dip against height but I do not
    have
    > one to hand any more.
    >
    > NG
    >
    
    
    

       
    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