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    Re: A8A sextant bubble chamber Hard to repair!
    From: Ronald P Barrett
    Date: 2011 Mar 15, 05:44 -0700

    Van, Those bubble chambers are hard to repair. I did one and it took three days! I finally did a total immersion trick on it. It was messy as the fluid I used was a very light oil. That bubble chamber is a real piece of engineering.

    MA1/MA2;They are rare now. An AFNOA (Air Force Navigators Observers Association) member may have one though. Post on www.afnoa.org and see.

    AFNOA has one each in their collection. Externally they are the same. Internally, only the optical path is lil'different as far as the horizon goes. Great sextants though.

    The USAF used the MA2 until the end of Navigator training at James Connally AFB, Texas in 1965, because they did not require a mount like the D-1 did. We were issued one and used it to practice celestial shots,,, in between classes.

    Look at the nav web sites ( www.james-connall.org  and  www.usaf-nav-history.com ) and you'll see the navs all around:just "shooting cel shots." Chuckle. Ya'know like pilots talk with their hands. Well navs look at the sky all day. Sort of like lost celestial tourists.

    Ron Barrett, President AFNOA,  USAF Ret NavBomb,

    --- On Tue, 3/15/11, W.D. VanWormer <Wvanwormer@sbcglobal.net> wrote:

    From: W.D. VanWormer <Wvanwormer@sbcglobal.net>
    Subject: [NavList] A8A sextant bubble chamber
    To: NavList@fer3.com
    Date: Tuesday, March 15, 2011, 3:39 AM

    I have two old A8A sextants in my collection. One does not have a bubble chamber. I believe the sextants were issued with a spare bubble chamber. Any leads on finding one would be appreciated.

    I also would like to find a MA1 to complete my collection.



    W.D. VanWormer
    24985 159th street
    Leavenworth, Kansas. 66048

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