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    Brown-Nassau Spherical computer
    From: Francis Upchurch
    Date: 2014 Nov 15, 03:33 -0800

    I recently stumbled upon an article by John M Luykx in Navigators Newsletter 1998 describing the Brown-Nassau computer for rapid LOP calculations. (NNL vo 3, but 30MB file,s o not attached).

    Could anyone help me with any information on this and also how to contact JM Luykx if he is still active?

    This  device looks like something I would want to construct if I had access to scanned copies of the original device graphs.

    Apparently it was developed by the Case Inst of Tech in Cleveland in 1944 for use in small planes.

    Any information would be much appreciated.

    Francis Upchurch

     

       
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