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    Re: Loran-C
    From: Tmstock
    Date: 2009 Mar 18, 15:09 -0400

    Also one of the proposed backups to GPS for aircraft use.
    
    Sent from my iPod
    
    On Mar 18, 2009, at 14:51, Lu Abel  wrote:
    
    >
    > I suspect it ain't gonna happen.  President Bush tried to eliminate
    > Loran-C three or four years ago, and several government agencies,
    > ranging from the FAA (for aircraft navigation) to the Department of
    > Defense (for military uses) opposed the elimination of Loran-C.   In
    > fact after the dust cleared money was ADDED to the budget for Loran
    > upgrades to the new e-Loran system (which is the Loran equivalent of
    > GPS's WAAS).   There are some really strong arguments to have a second
    > high-precision navigation system whose technology is independent of
    > that
    > of GPS (eg, terrestrial rather than space-based)
    >
    > Lu Abel
    >
    > Anabasis wrote:
    >> The US Coast Guard will discontinue it's LORAN-C operations in 2010:
    >>
    >> "On February 26, 2009, the Office of Management and Budget (OMB)
    >> publicly announced the President's Fiscal Year 2010 Budget. In the
    >> section for the Department of Homeland Security, the budget "supports
    >> the termination of outdated systems such as the terrestrial-based,
    >> long-range radionavigation (LOrAN-C) operated by the U.S. Coast Guard
    >> resulting in an offset of $36 million in 2010 and $190 million over
    >> five years." For more information on the proposed FY2010 Budget,
    >> visit
    >> the OMB website under President's Budget. "
    >>
    >> This will obviously affect the East and West Coast Chains of North
    >> America and will at least degrade the chain in the Pacific region by
    >> closing the Guam station.  I am not sure if Japan has plans on
    >> keeping
    >> their stations intact.
    >>
    >> In any case, coastal navigation along north America outside of the
    >> RADAR range of land will not be entirely dependent on GPS for
    >> electronic navigation.  To me, this means the celestial navigation is
    >> even more important, as without LORAN, there will be no electronic
    >> back-ups available if GPS is degraded or fails.
    >>
    >> Jeremy
    >>>
    >>
    >
    > >
    
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