"Remember, this is how all electronic navigation systems are evaluated for accuracy. Thet get five guys with sextants over on some seaside cliff in Ireland and start shooting stars. When they compare results that's where they are and the error is in the GPS, loran, etc"
That is complete BS!
details error sources for GPS and how they are calculated....and 10 meters is about accuracy today...not the 2 miles for a GOOD clestial shot.
Yah...thats why the Navy stopped teaching it! It is so accurate ....NOT. I don't know where you came from capn' but your chronometer has a few cukoos in it!