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: Question Re: Position by Calculation
    From: Bruce J. Pennino
    Date: 2014 Jan 13, 13:03 -0500
    
    Hello:
     
    After seeing Greg's quick solution for Hc with Weems (1927) and Dreisonstok H.O. 208 I did a little checking into alternative methods for my use. Mixter's Primer of Navigation provides a brief review of "new" methods starting with Line of Position Book, Weems (1927). Weems is pretty easy to use but obtaining Z by "rules" is not so easy to follow.  But if you just make a sketch the quadrant is available and the extracted value allows getting Zn.
     
    Instead of H.O. 249, I'm looking for an alternative short non-calculator method. Is Dreisonstok 1928 H.O. 208 an improvement over Weems, or is Ageton (1942) A.A.A. method in Manual of Celestial Navigation a far superior option??  
     
     It seems that Ageton's Manual is readily available  for relatively low cost ($ 7.95 U.S. Amazon).  I'm probably going to try a bunch more problems with Weems, no matter what , since I "invested" $ 7.00 for Line of Position Book.....big spender......
     
    Thanks in advance to all.

    Bruce
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
    ----- Original Message -----
    Sent: Wednesday, January 08, 2014 6:18 PM
    Subject: [NavList] Re: Question Re: Position by Calculation


    Attached is the VEGA Hc sight reduction done for both Weems and Dreisonstok on one side of an index card. No form needed.
    ----------------------------------------------------------------
    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
    ----------------------------------------------------------------

    Attached File:

    (Vega-Weems-208.jpg: Open and save)

    View and reply to this message: http://fer3.com/arc/m2.aspx?i=126237

       
    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