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: Dip Anomaly
    From: Greg Rudzinski
    Date: 2008 Mar 28, 15:02 -0700

    I would like to thank the NAVLIST for a very helpful and informative
    response. I have applied some of the suggestions successfully using a
    U.S. Navy MK 5 world war 2 bubble sextant. I did notice that a large
    formed bubble was steadier than a small formed bubble. The U.S. Navy
    MK 5 reads to 2 minutes of arc but can be visually interpolated to the
    nearest minute of arc. I haven't noticed any dip anomalies yet. I have
    been able to determine an unknown height of eye to within three
    feet.
    
    On Mar 13, 1:22 pm, Greg Rudzinski  wrote:
    > Question for NAVLIST: Can a bubble sextant be used to measure dip
    > anomalies from a known height of eye? This would be a negative
    > measurement in minutes from bubble to horizon.
    --~--~---------~--~----~------------~-------~--~----~
    Navigation List archive: www.fer3.com/arc
    To post, email NavList@fer3.com
    To unsubscribe, email NavList-unsubscribe@fer3.com
    -~----------~----~----~----~------~----~------~--~---
    
    

       
    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