With Boeing thinking about a 747 advanced which would use the 787s's
engines, how much changes to the 747 could Boeing make to bring the 747
in line with its 777 and 787 ?
It has often been said that changing systems in an aircraft would
require a new type certification.
But if you already have developped a cockpit for the 777 and 787, and
already have developped bleedless systems for the 787, would it really
cost so much to implement the FBW systems and cockpit as well as
bleedlesss systems into the 747 ?
If Boeing stretches the 747 while keeping the rest the same, what is to
be the difference in testing/certification compared to a real revamp of
the 747 with the systems from 787 ?
Wouldn't both have to go through flight tests period that isn't so
different ?
Is it a question of the cost of producing different do***entation ?
When Boeing went from the 747-200/300 cockpit to the 747-400 with 2
pilots, wasn't that a significant change to the cockpit ? how much in
terms of type certification costs/tests was required ?
