"Roger Long" wrote:
How much longer is the Loran system going to be active?

The US Coast Guard site is precisely ambiguous:

"While the Administration continues to evaluate the long-term need for
continuation of the LORAN-C radionavigation system, the Government will
operate the LORAN-C system in the short term. The U.S. Government will give
users reasonable notice if it concludes that LORAN-C is not needed or is
not cost effective, so that users will have the opportunity to transition
to alternative navigation aids."

From: http://www.navcen.uscg.gov/loran/Default.htm