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: Kelvin Hughes Sextant
    From: Jerry Gorman
    Date: 2014 Nov 22, 03:06 -0800

    Fred the only thing stamped on the arm is the serial no and ducks foot above the scale an H Huges and son ltd below the scale, i posted a photo. I have checked perpendicularity and side error both ok index error is 0.2 m. I have   further queries.the telescope collar is axiallybadjustable, what is the porposebfor this, presumably to centre the eyepiece, is this critical. More worryimg is that the housing for this adjustment is attached byb3 small screws. I noticed these were not secure allowing a small ammount of radial movement. I am assumimg that this is not critical otherwise this mounting method would not have been adopted. As i am measuring an angle the angle will be the same irrespective of the angle of the eyepiece. Am i correct in this assumption. Finally i taught myself sextant use and have always taken sun sights with the star sight.having taken on board the comments on this forum i have tried the l4 wire eyepice and find it somewhat difficult to use as everything is less clear ( more difficult)  is this just me?

       
    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