Why doesn the NTSB require any flights over water for an extended period of time, say 5 hours or more, to use planes with at least three (3) engines ?
James BW Hi James, When you mentioned about flying for 5 hours or more over water – in reality, an airplane seldom fly for that long over the sea without at least an airport in an island less than three hours away. The Boeing 777, with two powerful engines has been certified by FAA to fly over water for at least three hours on a single engine (see the topic on ETOPS above).
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