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: Relative plotting vs Geographical plotting
    From: Trevor Kenchington
    Date: 2002 Jan 12, 1:00 PM

    Herbert Prinz wrote:
    
    > How, I beg, is radar navigation on a sailboat different from that on a
    > power boat. If I am sailing in dense fog and see a plot on my radar, not only
    > must I guess power or sail, but even what tack this plot is on! This is plain
    > silly.
    
    At least where the international rules are applicable, the priority of
    sail over typical power boats (and of vessels not under command,
    restricted in their ability to manoeuvre, constrained by their draft,
    fishing etc. over both) is in the rules for vessels within sight of one
    another. So are the priorities of starboard over port and leeward over
    windward. They do not apply to vessels in fog so dense that one cannot
    be seen from the other.
    
    Trevor Kenchington
    
    --
    Trevor J. Kenchington PhD                         Gadus{at}iStar.ca
    Gadus Associates,                                 Office(902) 889-9250
    R.R.#1, Musquodoboit Harbour,                     Fax   (902) 889-9251
    Nova Scotia  B0J 2L0, CANADA                      Home  (902) 889-3555
    
                        Science Serving the Fisheries
                         http://home.istar.ca/~gadus
    

       
    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