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http://www.navcen.uscg.gov/?pageName=loranMain

Several of the U.S. towers have been demolished, with video of the
event posted to YouTube. Many of us in the GPS community urged the
U.S. government to retain Loran-C as a viable backup to GPS. The
Europeans are being more prudent (and possibly the Russians, too) in
retaining Loran-C and even fully upgrading to eLoran, which the
British have done. See
http://www.gpsworld.com/making-europes-seaways-safe-for-enavigation/,
for example.
-- (Prof.) Richard Langley

Quoting Bill B :

> If memory serves Loran was shut down in February of 2010.
>
> I've not purchased paper charts for a while, and was curious to see
> if Loran TD lines were still present. Current online images of NOAA
> Great Lakes charts still have the lines, as well as the Loran Linear
> Interpolater.
>
> Old technology, but some argue a viable backup where available for
> GPS, especially for recreation/small commercial vessels. Navlist
> members might suggest that is a sextant's job ;-)
>
> Is it too much of a hassel/expense to remove them, or are they left
> there just in case the mothballed stations are needed/funded again?
>
>
>
> Bill B
>
>
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| 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   |
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