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: Video of Davis MK 3 Practice at Sea
    From: Greg Rudzinski
    Date: 2019 Oct 6, 07:17 -0700

    It is a little difficult to find course, speed, assumed position, and then make sense of working notes which may be for a different day. What I am getting is an assumed position of 22° 6.2' N  76° 11.9' W at UT 17:30:00 off the GPS. The example observation made by the crew member (perhaps his first ever) has Hs 84° 10' lower limb Sun marked at UT 16:45:20. Course is 239° true? speed 6kts. The date is in question but seems to be 7/13/2019. LOP plots ok. Well done crew member! An index error of 5' on the arc was used on the working notes but not labelled. Semi diameter,refraction, and dip aren't labelled either. I am also wondering how he was able to keep from burning his eye some when bringing down the Sun since the mark 3 doesn't have horizon mirror shades :0

    Greg Rudzinski

       
    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