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> took a loooong time for Boeing to convince the FAA that a twin engine jet was safer than a 4 engine for ocean crossings

I don't believe they convinced the FAA twin is safer, just that it meets the necessary safety margins. Airlines want them to meet that regulation for fuel efficiency, but I'd want a source that they're actually safe-er, instead of simply safe enough



Boeing proved it safer. The reason is the increased complexity of more engines increased the risk of a major problem.

My source is I was told this by the engineers who where involved.


Now see, the worst part is, I believe you. Your username pops up frequently enough, and is recognizable enough, that I consider you a reasonable, thoughtful person. And the rationale makes sense - juggling multiple engines is extremely complex

But now way in hell can I, in good conscience, repeat that without a source


> But now way in hell can I, in good conscience, repeat that without a source

googling "why are twin engine jets safer than quad engine jets?" should provide the needed information.




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