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    Re: Bubble Sextant
    From: Greg R_
    Date: 2008 Jul 3, 23:51 -0700

    Hi and welcome to the list.
    I'm curious if the aircraft you fly have a dome fitted for celestial
    navigation (which would usually include a hook to hang the bubble
    sextant from). Otherwise you're probably going to have to determine the
    refraction correction through the windscreen yourself (seems like I
    read somewhere that WWII bomber navigators had to do that themselves
    too (or at least confirm prior calculations), so maybe that's a
    starting point for your research?).
    Good luck and keep us posted on how your project progresses.
    --- 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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