Originally Posted by
Deepinsider
That's true, But what is new, is that same old design (" The first 777 passed the test no problem (many years ago").
is now being pressurised to a HIGHER LEVEL to satisfy marketing policy that the cabin alt will be lower, similar to
the 787.
Somebody here will tell us the pressure differential increase I'm sure.
Yes exactly and since the original 777 there have been great advancements in mathematics, it has been hard for most to keep up.