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    GPS Accuracy Now.
    From: Derrick Young
    Date: 2000 May 03, 11:07 AM

    > Just as a point of information regarding automated landings.  When I
    > worked for Boeing in the 70's and 80's, we developed a fully automated
    > landing system.  We tested it on the 727, 737 and 747 platforms that we
    > had available.  We did a number of landings in heavy fog, rain (it is
    > always raining in Seattle) and other not so nice conditions.  It was
    > submitted to the FAA for certification back in 1980 and as far as what I
    > remember, never went any where.
    >
    > I do know that we used the Seattle Tacoma airport, the Everett WA airport
    > and San Francisco airport for testing.  SF was very interested because of
    > the fog.
    >
    > derrick
    >
    > The FAA has been landing a test 727 automatically for a
    > couple of years, trying out various schemes. Among these is
    > the use of a pseudolite embedded in the runway, as well as
    > ground clearance radar.
    >
    >
    >
    

       
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