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: Freiberger Trommelsextant errors
    From: Frank Reed
    Date: 2012 Apr 15, 19:25 -0700

    Arc error is NO PROBLEM ...so long as it has been properly assessed. I would much prefer a sextant with a trustworthy calibration table with good intervals (like the ten degree intervals in your sextant's table) and errors up to a couple of minutes of arc over a sextant that has simply been labeled "good enough for normal practice" or whatever euphemism they use. After all, on any sextant sight you're going to correct for index error. So make a table that combines the arc correction with the index correction, and then you have the same amount of work to do every time. It might be a little "disappointing" in some fashion that's hard to quantify, but it does no harm at all.


    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

    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