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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

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    Re: Dennert & Pape MHR-1
    From: Gary LaPook
    Date: 2014 Mar 4, 13:31 -0800
    The MHR-1 was a German adaption of the British designed Bygrave slide rule so also search under "Bygrave."


    Also see:











    From: Gary LaPook <garylapook---.net>
    To: garylapook---.net
    Sent: Tuesday, March 4, 2014 9:17 PM
    Subject: [NavList] Re: Dennert & Pape MHR-1


    Everything you need to know to build your very own working celestial slide rule.

    https://sites.google.com/site/fredienoonan/other-flight-navigation-information/modern-bygrave-slide-rule

    gl



    From: Brad Morris <bradley.r.morris---.com>
    To: garylapook---.net
    Sent: Tuesday, March 4, 2014 7:21 PM
    Subject: [NavList] Re: Dennert & Pape MHR-1


    Hi Dennis
    Please consider first the FLAT BYGRAVE as the most accessible.  Poking around here with those search phrases will lead to images you print out and use immediately.  I'm sure Gary will pop in with some helpful advice
    There are also plans available for a cylindrical bygrave.  This is more challenging to build but has an authentic feel.
    To buy one, the most likely location is eBay.  They come up from time to time.  As they appeal to navigation enthusiasts and slide rule collectors, expect stiff competition
    Brad
    On Mar 4, 2014 1:57 PM, "Dennis Peterson" <dpeterson70{at}cfl.rr.com> wrote:

    Please help me find or build an MHR1.
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