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by asteli 3378 days ago
I see some back of the napkin calcs happening here, and feel compelled to point out that in addition to in-flight fuel, current regs require planes to have reserves sufficient to:

* maintain a holding pattern for 30 minutes (45 for recip. engines) PLUS

* perform a missed approach at destination, climb out again, and perform a landing at an alternate PLUS

* contingency fuel (5% of trip fuel)