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: Backup Celestial Navigation Kit
    From: Tom Sult
    Date: 2015 Apr 30, 22:30 -0500
    Ok. If you get calculators I'm putting 3 GPS each in its own faraday cage. 

    Tom Sult, MD
    Author: JUST BE WELL
    justbewell.info

    On Apr 30, 2015, at 22:11, Bruce J. Pennino <NoReply_Pennino@fer3.com> wrote:

    Nautical Almanac adds a lot. Maybe Weems 1927 along with Pub 249.  Must have two hand held compasses.....one cheap $ 10 USD, one hockey puck. Gotta have two hand calculators with equation sheet ( I can’t memorize  all of them).

    Bruce














     
    Sent: Thursday, April 30, 2015 7:51 PM
    Subject: [NavList] Re: Backup Celestial Navigation Kit
     

    1. Ebbco and Bris.

    2. Pub 249 Sun LTA. (1 page)

    3. A rated 8 day aircraft dash clock. ( they are surprisingly accurate)

    4. Haverersine tables for Doniol Haversine reduction w/ Ix diagram. (2 pages)

    5. Paper back Trig Log tables for classic reduction.

    6. Polaris Latitude Wheeler for northern latitudes.

    7. Wet Notes and .7mm plastic mechanical pencil.

    8. Compact protractor. (Custom T Plotter)

    9. 6" Pocket Doric sliderule.

    Everything is inexpensive, light weight, and fits easily into the Ebbco case. This is better than just a get home kit. For getting home all a sailor needs is a Davis MK 3 and a Sun declination table to latitude sail with (no timing needed).

     

    Greg Rudzinski

    From: Robert VanderPol II
    Date: 2015 Apr 30, 15:10 -0700

    So what would everybody put in a package for the ultimate backup celestial navigation getup?

    Basic scenario: half way across the ocean of your choice you are hit by lightning and every piece of electrical and electronic equipment on the boat is fried.

    Givens:

    Try to keep the costs down to encourage the hoi polloi to think this is a reasonable expenditure.

    Try to keep things as simple as possible so folks won’t be discouraged from practicing once a week or so.

    Try to minimize weight and volume to . . .

    You all get the idea.

    This is intended to get someone home or to a port where repairs can be made, it isn’t intended to be able to continue a voyage to a difficult landfall with lots of outlying dangers.

     

     

     

    View and reply to this message

    View and reply to this message

       
    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