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    Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.
    From: Francis Upchurch
    Date: 2016 Dec 19, 04:32 -0800

    I've just built a working model of Bob's very interesting slide rule using the quick and easy cheat of sticking re-sized copies of the  scales to the empty reverse side of my old Thornton 10' rule. (only took a couple of hours to build).

    I have test driven it and compared with Bygrave Replica, Fuller 3 and Brown-Nassau.

    For the minority of similarly afflicted minds, see attached for details.

    Congrats to Bob for a very good slide rule.

    Seasonal greatings to all.

    Francis



    File:
    Mark2Navigator-s-slide-rule-comparison-tests..docx

       
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