Pmdg 777 fmc tutorial10/10/2023 ![]() Usually, for B777, the 60 minutes is considered to be a standard distance of 420 nm (because it is considered to fly 420kts in single engine ops). ![]() There is absolutely no "in short" to your interesting questions, but let's try to shrink as much as I'm able to.ĮTOPS (EXTENDED TWIN OPERATIONS) is the acronym created by ICAO to describe the operation of twin-engine turbine aircraft over a route that contains a point further than 60 minutes flying time from an Adequate Airport, at the approved single engine inoperative cruise speed (under still air ISA conditions). another extremely complex issue to sort out here.
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