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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 the termination of outdated systems such as the terrestrial-based,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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