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    Re: Loran-C
    From: Lu Abel
    Date: 2009 Mar 23, 21:00 -0700

    This month's GPS World magazine has an interesting article on what's
    happening with Loran-C.
    
    The recently updated Federal Radio Navigation Plan, a document jointly
    created by the departments of Homeland Security and Defense and the
    Federal Aviation Administration calls for phasing out of Loran-C.  It
    also calls for moving responsibility for Loran from the Coast Guard to a
    different part of DHS.
    
    The call to preserve Loran-C, which motivated not only the preservation
    of the system but a call to create e-Loran was the result of an
    Institute of Defense Analysis study which pointed out the
    vulnerabilities of GPS for both military and especially civilian use and
    called for creation of a second high precision navigation system using
    totally separate technology.  I would see this as especially important
    to the FAA, since a whole bunch of challenges to aircraft navigation
    (especially so-called zero-zero landings) can be solved with precision
    navigation tools -- but it's pretty scary to think of your airplane on
    final approach under zero-visibility conditions into a major airport
    when somebody's TV decides to go on the blink and jam GPS, so I'm really
    surprised the FAA is accepting this call for eliminating e-Loran.
    
    --~--~---------~--~----~------------~-------~--~----~
    Navigation List archive: www.fer3.com/arc
    To post, email NavList@fer3.com
    To , email NavList-@fer3.com
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