The 380 certainly rides turbulence better than all the previous planes I have been on. Noise insulation has improved sitting forward of the engines but subjective towards the aft. Most fliers complement the comfort levels i.e spaciousness, smooth ride, general quietness and of course the novelty of 'newness'.
Newer Boeing? Or newer planes? Newer planes like any newer stuff would definitely have tightness retained around all its seals, plugs, joints and insulation. Hence quieter. Like tight links on a Rolex bracelet.
Hmmm, engine noise reduction? Could be a variety of explanations.
1. Reduction from takeoff thrust to climbing thrust.
2. Engines stabilizing from the initial thrust initiation.
3. Acceleration buildup and upon getting airborne -reduced wheel and engine noise echo from runway.
4. None of the above, meaning I don't know.
Your guess's as good as mine
5. Your worst nightmare just came true.
Now just turn over and go back to sleep. The stewardess will be with you in a while.
Sweet dreams.
