Somewhat time related. The Navy realizes that GPS might not always work. I don't imagine that aircraft in the US Air Force will be able to do this very reliably, and the article doesn't mention that service. I'm guessing that a lot of strategic Air Force aircraft have star trackers that will work some of the time w/o GPS (at night).
http://www.latimes.com/nation/la-na-celestial-navigation-20151025-story.html Thanks Jim _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
