Originally Posted by
DYKWIA
No, only LGW flights will have 3-4-3. BA don't fly to HKG from LGW, only from LHR.
So, LHR 772 will be 3-3-3, same as CX A350.
Only LGW will have 3:4:3
initially. All LHR 772ERs (YMM*) will also go 3:4:3 eventually
If HKG ever goes onto the 772 from LHR, it will also be 3:4:3 (unlikely though as I suspect F demand on the HKG will keep it safe)