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: The Appleyard Course and Distance Computer
    From: Adrian F
    Date: 2019 Apr 17, 14:06 -0700

    I ought to set the record straight. In my post of 11 March 2019 about the Appleyard Course and Distance Computer, I said :   > " I see that the Imperial War Museum in the UK holds a 4-page document from 1918, “Description and use of the Air Speed Computer designed by Commander Rollo Appleyard R.N.V.R."

    I have now viewed this document and it does not seem to be about the course and distance computer.  The document concerns a different device that Commander Appleyard designed, intended to give an approximate true air speed based on the indicated air speed and altimeter height. 

    Adrian F

       
    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