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    Re: Bubble Sextant
    From: Ken Gebhart
    Date: 2008 Jul 4, 17:29 -0500

    If you fly east-west, you are bound to spend some time in sunlight.
    Why not try a protractor with a plumb bob to measure the sun's
    shadow.  This will be an inexpensive way to get started.  Of course,
    if you fly north-south such as NA to SA you might be in the dark all
    the way.  The A-12 sextant is the best way to go.  DO NOT buy an
    A-10/ A-10A on eBay as all of these are inoperable, and are very hard
    to fix.  Other than that, the A-10 is excellent, and better then the
    A-12 for use in a cockpit.  As mentioned by another, there are many
    discussions archived on the Nav List about aircraft sextants, and
    also how to use them in flight.
    Ken Gebhart
    On Jul 3, 2008, at 7:14 PM, bubi352 wrote:
    > I am new to this group and new to celestial navigation. I currently
    > work as an airline pilot and fly extensively over water at night. I
    > have developed a keen interest in determining my position the old
    > fashion way.
    > Could someone tell me which bubble sextant I should buy?
    > What should I be looking on a bubble sextant?
    > Where can I buy one?
    > Thank you in advance.
    > Bubi
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