Loran was used as an area navigation method in aviation for many years. It was available nation wide with a number of chains. I had assumed that the area of interest was the Rocky's but if the Appalachians, even better.
In aviation, 0.25 nm is 'precise'. If you get me to within 0.25 nm of the airport, I can probably find it. However, it would not be precise enough for a 'precision approach'. Joe -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Hal Murray Sent: Thursday, September 09, 2010 11:18 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Timing Distribution in Mountainous Terrain > Loran? What was the stability of Loran when used to distribute time? (I'm assuming I can use something like GPS for calibration.) Wikipedia says: The absolute accuracy of LORAN-C varies from 0.10-0.25-nautical-mile (185-463 m). Repeatable accuracy is much greater, typically from 60-300-foot (18-91 m). 60 feet would make it hard to get 30 ns accuracy, and that's probably at sea rather than in the mountains. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
