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    Re: What is a "Class A" sextant?
    From: Brad Morris
    Date: 2014 Jan 21, 15:28 -0500

    On second thought, the Class B and the 120 degree error box are preprinted.  So failing to have a 120 degree range cannot knock you from A to B

    Brad

    On Jan 21, 2014 3:25 PM, "Brad Morris" <bradley.r.morris---.com> wrote:

    That may be true.

    My Class A is measured 8 times every 15 degrees to 120 degrees.

    Yours is too.  I note the 1 arc minute at 120 degrees, which pushes the limit in accuracy to 1', from 30".

    The class B is every 30 degrees.  I note one other, maybe significant, delta.  The cert is only to 105 degrees.  Perhaps 120 (+) is required!

    Brad

    On Jan 21, 2014 3:18 PM, "Dave Walden" <waldendand---.com> wrote:

    A class a certificate. 8 measurements vice 4?
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