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    Re: Doug Royer's Artificial Horizon
    From: Fred Hebard
    Date: 2005 Feb 25, 14:56 -0500

    On Feb 25, 2005, at 2:44 PM, Royer, Doug wrote:
    > Bruce,
    > a little background on this 1st. Remember last year when you and
    > George gave me pointers on the 1st(square)one I made? I took both of
    > your  inputs and made a triangular A.H.
    > I was experimenting making glass A.H.s that were square with 6-32
    > machine screw level adjusters.That configuration was extremely
    > difficult to level out.
    > The black glass surface was extremely reflective.However,I found it
    > wasn't very robust as I cracked the glass at some point and the 3145
    > RTV didn't like to hold the glass to the aluminum base.Scratch the
    > glass and back to the drawing board.
    If you wished, couldn't you leave the plexiglass cut square or
    rectangular but only use three legs, one fixed and two adjustable?  It
    would be more tipsy than a triangular piece, but might accommodate the
    levels more easily.

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