NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2012 Aug 21, 11:47 -0700
During the 1980's GPS was not available (Doppler SatNav yes). To gauge celestial navigation observation quality required comparing with Loran C. Usually I would cross a Sun line with two Loran lines and was generally within a nautical mile of the Loran intersection. Rarely more than two miles off. Timing was done with a digital watch set to a short wave time tick before CN observations. A 7x35 mm scope was always used from a heights of eye around 80 feet. When GPS became ubiquitous in the 1990's then unfortunately for most watchstanders the sextant remained in the box :( Out of habit I would still run a Sun or star line through the GPS plot to confirm the electronics.
Greg Rudzinski
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