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
    Re: Vernier explanation
    From: Michael Bradley
    Date: 2022 Jun 27, 14:37 -0700

    Peter, you wrote:

    'Hmm.  Could the vernier have been mis-engraved, perhaps by configuring the dividing engine with settings intended for the arc?  How would that have gotten past final quality control?'

    Mis-engraving does happen. A batch of the Francis Barker box sextant had that very build error. When I bought mine about fifteen years ago, the build error was a thing you had to look out for ...

    All the best

    Michael Bradley

       
    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