|Quoting HPRamper (Reply 149):|
I'm thinking in terms of replacing the MD-11 on its original, intended mission for FedEx. It was not supposed to be used domestically, that's really a somewhat new development. Before the 777 entered the fleet you didn't seen many MD-11s flying domestic routes.
The 787 is a lighter aircraft with less payload/range. (Yes, it has enormous range with a much lighter payload, but as with all light modern aircraft the curve is steeper.) I think a 789F would do great on domestic and short TATL flights but won't be able to do the long TPAC missions the 777F does. It's a matter of waiting until Boeing needs the F to keep the production line full, which will probably happen in the mid-2020s. Lots of time to take more 767Fs to replace all of the remaining MDs/A310s/A300 P2Fs, and in a decade or so, all the rest of the A300Fs.