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[Source Article](https://www.thegatewaypundit.com/2023/11/terror-skies-civilian-airplanes-are-getting-their-gps/)

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[–] 2 pts

Dead reckoning.

[–] 1 pt

Old school piloting skills. Flight schools may touch on that sort of thing, but majority of the focus is navigation by gps. I doubt schools really even bother to mention radio navigation.

[–] 1 pt (edited )

Later, I was thinking a compass and maybe a sextant and a mechanical stop watch. Yes, RDF! Excellent! An exciting new technology.

Centralization is a bad idea. You can't always rely on a single system. I remember LORAN C, it was pretty good, but I never relied on only that. I used to take fixes on a chart, get the time and measured my speed.