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
    Distance by Vertical Angle Adaptation
    From: Greg Rudzinski
    Date: 2009 Jul 26, 16:00 -0700

    
    An interesting adaptation of the distance by vertical angle short of the horizon formula:
    
    Dist.(NM)=(.567 x Height of Nav.Mark in ft.)/Observed Minutes of Arc
    
    To get distance by vertical angle beyond the horizon - correct the height of 
    the navigation mark (subtract ft.) using formula:
    
    ((Approx.Dist.Nav.Mark/1.144)-Root Height of Eye)Squared
    
    Now try this out using a slide rule.
    
    Greg
    
    
    
    
    --~--~---------~--~----~------------~-------~--~----~
    NavList message boards: www.fer3.com/arc
    Or post by email to: 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