*** Posted by Kim Nielsen ***
Hi Rapier.

You must have misunderstood my letter.
I'm not facinated of the sound, but surprised, and interested in the technique around the background why it appears to its standing level such sudden (aproximately within a speed-difference of less than 50 km/t, due to the elapsed time of between 5 and 10 seconds during middle acceleration in climb!)
I realize that drag rises with the sq. of the speed, and did wonder about there was several levels in drag/speed like the one mentioned by me, wich konstructors as well as pilots do use/observe?

For my person, I have'nt been aboard the DC-10, but my misses have, and She can't remember any special anoring mecanical noise, though She was seated in middle/wing-section both ways to Florida.
But the DC-10 is wide-bodied and therefore I could imagine the noise caused of the drag must be as significant as for my own experiences in 737 and Airbus !

Regards, Kim

Firstly I would just like to ask Kim what is the facination with the sound of air on the outside of the fuselage?

I have been on a DC-10 Run and they are terrible for noise pollution inside the jet. Because it is a medium sized airliner the engines on the DC-10 are quite close to the fuselage. It was anoying to get so much noise in the plane all the way to our destination and back.