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: Gyro sextant
    From: Brad Morris
    Date: 2019 Jan 24, 17:17 -0500
    Thank you Paul.  That makes tremendus sense.  A few thousand rpm will spin for awhile.  A few hundred would too rapidly decay to zero.

    Have you, by any chance, performed some observations?  This will help Bill to determine if the device in his possession needs more work or perhaps it is an inherently bad design.  

    A sample size of one isn't ideal.  Nor two, for that matter!

    Brad





    On Jan 24, 2019 4:33 PM, "Paul Brewer" <NoReply_Brewer@fer3.com> wrote:

    The rotor in the sextant is spun up to several Thousand rpm from what I can see of the model I have.

    From what I have read the device was spun up inside the submarine then carried up the ladder to the conning tower top for an observation.

    It must have been a nightmare to operate what with weight and size.

    Paul.


       
    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