I have read many threads that were saying airlines , like UA
in the states,
are taking 777 as a replacement for 747
What is the philosophy behind 777 as a replacement of 744?
I can't understand, they are so different in term of capacity.
772/773 can carry around 300 to 380 pax in two classes setting,
while 744 can take, may be 380+ in a three classes setting, and
744 has a longer range than 772/773, except those newer 777 ER
Is it really more economical to operate 777 rather than 744
and these savings are good enough to cover the revenues loss with
less pax? How about ETOPS issue?
Can A345/6 do the same job as replacement of 744?