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    Re: How Many Chronometers?
    From: Byron Franklin
    Date: 2009 Sep 19, 15:08 -0700

    I was on the first Polaris program, aboard the SSBN 602 Sub, Like the
    Time pieces we had 3 Inertial navigators, I was a qualified operator.
    We were under water for 2.5 months at a time and alway knew were we
    were for fire control missle launch. Again this required operators
    constant knowlege and attention with very, very little and almost no
    outside information. Orders we were to proceed undetected. They are
    even better now.
    
    On Sep 19, 8:13�am, Apache Runner  wrote:
    > I'll try to get something more from her - from her website - one paper,
    > where I couldn't find the actual citation:
    >
    > Schulz, A.E., Hoke, Charles, Roley, Daniel, "Asymmetric vulnerability
    > assessment of the GPS and GPS III navigation systems," Space CHOP Mission
    > 11, Jan. 2003, Space Vehicles Directorate, Kirtland AFB, NM.
    >
    > A talk to an alumni group that has one slide on it:
    >
    > http://www.sns.ias.edu/~schulz/talks/BU_Alum.pdf
    >
    > Some random googling shows interest in countermeasures against GPS jamming:
    >
    > http://www.spawar.navy.mil/sti/publications/pubs/td/3155/5a_S4papers/...
    >
    > Evidently the Iraqis tried some jamming during the first days of the war.
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