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: Hp by Doniol for Aircraft
    From: Hanno Ix
    Date: 2014 Dec 3, 12:50 -0800

    Greg,

    that's dapper!

    The CHIC seems to show 4-digit multiplication results.While I don't think 4-digt results were a necessity in this flight it would nevertheless baffle me since you are using a circular slide rule with only 8" diameter I believe.

    I assume you did both, the flying and the CelNav.There are some interesting issues from a pilots point of view:

    Was there a particular technique to operate the sextant and the yoke simultaneously? That sounds tricky.

    I suppose you planned for the direction of the field of view during flight so you could see the sun all the time, correct? Now, if you had to change direction to see the sun - say as much as 90 deg - that would cause  a possibly large deviation from a straight line between waypoints. How would one handle this?

    While I am familiar with a glider's cockpit - very, very tight! - I have no idea about cockpit management in a Cessna. Therefore I wonder, how did you organize your cockpit for sextant, paperwork, maps and slide rule?

    Assume Francis would succeed in making his BN and it would be sufficiently accurate. Maybe its size would be abt 12 by 12 . Could you accommodate a BN of this size?

    H

    ________________________________________________________

    BTW: I found a formula for the dip in minutes using hav: dip = - 27*ahav (10e-7 *h);    
    h is the height of the eye in feet. It is pretty accurate. Try it.
     




       
    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