http://www.youtube.com/watch?v=h3AiGiJgf9Y
http://www.youtube.com/watch?v=_3SMaNrsaoI
But it's cool we got to see so many first flights this year!
Here is some detail on why it is so quiet
http://www.flightglobal.com/news/articles/airbus-a350-xwb-se...
Be careful about trying to judge the relative loudness of the two planes based on YouTube videos since the sound levels in the video will depend on the type (omnidirectional vs cardioid), frequency response of the mics, and location of the mics (distance from the plane, position relative to noise emitting components, etc) as well as how the video is mixed and other factors.
The A380 and B787 introductions were very rocky, with delays added to delays added to delays. On the other hand so far the testing of the A350 as been incredibly smooth.
I know that it's too early to draw any conclusion, and that the A350 is still one year from EIS. But when you take into account the actual competence of making a new plane, and how quickly it can be lost, I wouldn't be surprised if the lesson learned is that it is more economical for Airbus and Boeing to release new planes more often...
But once it was settled the engineering went smoothly. Or, should I say, has been going smoothly so far.
The skills involved in designing a plane are vastly different from that of figuring out which plane your customers will want 5 to 30 years from now.