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    Stellar Navigation Still Used (Partially) on (Some) Military Aircraft
    From: Richard B. Langley
    Date: 2006 Aug 15, 12:32 -0500

    Northrop Grumman Stellar Navigation System Makes its First Flight on RC-135
    Aircraft

    by Staff Writers
    Woodland Hills CA (SPX) Aug 15, 2006

    The new LN-120G stellar navigation system developed by Northrop
    Grumman Corporation has successfully completed its first flight test
    on RC-135 aircraft. The LN-120G is a GPS-augmented stellar inertial
    navigation system that tracks stars day and night.

    It uses the information about a star's location to refine the
    positioning information provided by the aircraft's inertial navigation
    systems. Repeating this process enables the LN-120G to provide heading
    information accurate to 20 arc seconds -- the highest accuracy
    available in the world.

    More:
    <http://www.spacewar.com/reports/Northrop_Grumman_Stellar_Navigation_System_Makes_Its_First_Flight_On_RC_135_Aircraft_999.html>

    ===============================================================================
    Richard B. Langley                            E-mail: lang@unb.ca
    Geodetic Research Laboratory                  Web: http://www.unb.ca/GGE/
    Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506 453-5142
    University of New Brunswick                   Fax:      +1 506 453-4943
    Fredericton, N.B., Canada  E3B 5A3
         Fredericton?  Where's that?  See: http://www.city.fredericton.nb.ca/
    ===============================================================================

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