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
    Name or NavList Code:
    Email:
       
    Reply
    Re: DIY plotting charts
    From: Courtney Thomas
    Date: 2004 Jan 28, 08:30 -0500

    Older copies [and newer] of Bowditch can be had very cheaply at
    www.abebooks.com.
    
    HTH
    
    Joel Jacobs wrote:
    
    > Its good to know  that you can get Bowditch online at no cost since a new
    > copy of the Pub, which may be available only in softcover costs a bundle.
    > Not a very shippy binding.
    >
    > If you can get a copy of the "Best of Sail Cruising", first edition, not the
    > later two, you will find an article that explains how to create a small area
    > plotting sheet using the ruled lines in your logbook. I think it was
    > published around 1976.
    >
    > It is really quite simple. The easiest way is to designate the horizontal
    > lines as lat. Then draw from the apex of the lower left corner a line whose
    > angle equals the degrees of Mid-lat. That becomes you measure of Dlat or NM.
    > (nautical miles). You can define the Dlong in any increments you want such
    > as the space between the line being 1, 2, 5, 10 NM. Then strike you vertical
    > lines to equal long. That's all there is to it. Plot as you normally would.
    >
    > If you want, you can set the ruled lines as long, and do basically the same
    > thing, but the difference between them will be departure.
    >
    > That's the way I plotted all my sights once I was at it for a while. It cuts
    > down the tedium of starting with a blank piece of paper.
    >
    > My copy of the book is in storage as our most of our things so I wrote this
    > from an admittedly shaky memory. If I left something out, excuse it.
    >
    > Joel Jacobs
    >
    >
    > ----- Original Message -----
    > From: "Tony Cappiello" 
    > To: 
    > Sent: Tuesday, January 27, 2004 11:07 PM
    > Subject: DIY plotting charts
    >
    >
    >
    >>Murry
    >>
    >>Bowditch's "The American Practical Navigator" is available online at the
    >>
    > following website . You can download the entire document at once or a
    > chapter at a time. This should get you started without spending any $. This
    > is the reference or at least one of the references you should have. It
    > contains a wealth of information. There are several other documents at this
    > site which may be of interest to you as well.
    >
    >>Enjoy!
    >>
    >>http://pollux.nss.nima.mil/pubs/
    >>
    >>
    >>Tony Cappiello
    >>-----Original Message-----
    >>From: Navigation Mailing List
    >>[mailto:NAVIGATION-L@LISTSERV.WEBKAHUNA.COM]On Behalf Of Murray Campbell
    >>Sent: Tuesday, January 27, 2004 17:30
    >>To: NAVIGATION-L@LISTSERV.WEBKAHUNA.COM
    >>Subject: DIY plotting charts
    >>
    >>
    >> the books i'm trying to learn from mention that it is
    >>possible to make your own plotting charts on graph or
    >>blank paper, but they don't give any more info...
    >>
    >> it seems like i will need to create a map projection
    >>for the needed lattitude...i'm not sure how i go about
    >>scaling lattitude to longitude at different
    >>lattitudes...is there a formula that does this??
    >>
    >> (i would rather not be dependent on buying and
    >>stowing a bunch of plotting charts)
    >>
    >> thanks, m
    >>
    >
    
    
    --
    Courtney Thomas
    s/v Mutiny
    lying Oriental, NC
    WDB5619
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

    Enter the email address associated with your NavList messages. Your NavList code will be emailed to you immediately.
    Email:

    Email Settings

    NavList ID 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