panda-k-bear,
Your right, in todays environment, several of the older Boeing designs would have trouble certificating today. But, Boeing does not make those airplanes anymore. All of the newer models meet the latest standards.
Tinstaafl,
How different is the 747 passenger evac from the A380?
Try 180 more souls. If you do the math. Following the FARs for passenger evac certification. You will have:
3 of the six doors blocked. 3 working doors.
Half the baggage from the bins blocking half the aisles.
That means, and this is not taking into account that somebody has to get the doors open(maybe finding that the door they have opened is blocked), deploy the slides, and then 200 people have to make it to the ground. Broken down into numbers:
200 / 3(doors) = 66.67 people per door 66.67 / 90(seconds) = 0.7 people per door a second.
All the while this is in almost complete dark and you can't practice.
Regarding the composites of the 7E7. I think making the whole airplane out of composite is insanity. Everyone that has tried to do that has failed. A composite fuselage, yes. But the wings and nacelles, no. To many dispatch related problems everytime somebody has made a composite nacelle.