Originally Posted by
SeenItAll
I'm quite sure the frames will be able to make the distance. The only issue is going to be, "at what passenger load?".
Pax load is one thing. There's also "how much freight" as well. Cathay in particular commonly gross their 773ER out on substantial belly cargo loads to and from Hong Kong, on both legs of their competing flights. With a full pax load and bags, belly freight revenue is still commonly equal to the overall profit for the flight.