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    Re: Artifical Horizon
    From: Terry Syrokosz
    Date: 2018 Jan 25, 18:22 -0800

    David     Thank You Very Much for Your help. I'm not familiar with "arc error" or the "Q or P in A". One of them must be Altitude:  Semi-Diameter/Parallax tho I'm assuming that would be the arc error? The P being atmospheric pressure? I haven't even a guess for the Q or A. I am really trying to learn this the right way and am very glad to have your time and help. Your previous answer has already helped me greatly.

       
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