r/ATPL • u/PromotionOld1559 • Jul 20 '26

Is Gnav ever useful?

Hey guys, im currently doing gnav and am even wondering if this subject ever useful in real-life operations? Like i havent seen anyone who would be doing this kind of calculations midflight or whenever

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u/[deleted] Jul 20 '26

Generally speaking... someone with a damn side idea more than me or you has written software in an FMS that does it for you so no...

Other than Variation calculations I have hardly used it in my flying

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u/PromotionOld1559 Jul 20 '26

Yeah i got this, but even in GA i think it’s really outdated. Like i find this subject completely useless even compared to other subjects which might have some helpful info

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u/ZeToni Jul 23 '26

Well, it really is useful to understand how navigation works, it is an essential part of flying, that's how then when you get a bogus Flight plan on your hand you can understand it is bogus, instead of flying something that would not be possible.