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    Re: astrocompass still in use
    From: Paul Hirose
    Date: 2002 Sep 25, 11:38 -0700

    Robert Eno wrote:
    > The astrocompass is still in use in Arctic Canada; in fact according to
    > one of my contacts in the airline industry, its use -- as a backup system
    > for maintaining a heading -- in small aircraft such as twin otters, is
    > still mandatory.
    Where would it be mounted?
    When I first worked on B-52s in the early 80s they still had the MD-1
    astrocompass. It was totally automatic. A little astrodome about the
    size of a coffee cup was on top of the plane, and contained the "eye".
    The MD-1 gave precise heading and also functioned as an automatic
    sextant, continuously displaying your intercept with respect to the
    nav system's present position. It long predated the microcircuit era;
    the equations were solved with vacuum tubes, differentials, synchros,
    Someone is selling a Mk II on eBay. Auction ends Oct 1. No bids yet.
    It's a "reserve" auction so no telling how much the seller really
    wants for it.

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