spiritair97
Topic Author
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A330/340 Window Configuration?

Tue Jul 10, 2012 7:17 pm

On the Airbus a330-300 and a340-300, you can cleary see that there is a curve in the line of windows following door 3L/R. It is clearly evident in the following:

http://www.airliners.net/photo/Swiss...al-Air/Airbus-A340-313X/1652286/L/

So my question is, why is this so? Why do the windows curve up?
 
roseflyer
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RE: A330/340 Window Configuration?

Tue Jul 10, 2012 7:54 pm

Quoting spiritair97 (Thread starter):
So my question is, why is this so? Why do the windows curve up?

The cabin floor also curves up.
If you have never designed an airplane part before, let the real designers do the work!
 
B6JFKH81
Posts: 1962
Joined: Thu Mar 16, 2006 6:35 am

RE: A330/340 Window Configuration?

Tue Jul 10, 2012 8:05 pm

It also did it on the A300 if I recall correctly.
"If you do not learn from history, you are doomed to repeat it"
 
Viscount724
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RE: A330/340 Window Configuration?

Tue Jul 10, 2012 10:00 pm

Quoting Roseflyer (Reply 1):
Quoting spiritair97 (Thread starter):
So my question is, why is this so? Why do the windows curve up?

The cabin floor also curves up.

I believe that design was to permit more full-size cargo containers to be carried on the lower deck. Doesn't make any difference to passengers (and it's hardly even noticeable in the cabin), but if the floor didn't have that slight curve you would lose several inches of height in the cargo compartment in that area.
 
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DocLightning
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RE: A330/340 Window Configuration?

Tue Jul 10, 2012 11:14 pm

Quoting Viscount724 (Reply 3):
I believe that design was to permit more full-size cargo containers to be carried on the lower deck. Doesn't make any difference to passengers (and it's hardly even noticeable in the cabin), but if the floor didn't have that slight curve you would lose several inches of height in the cargo compartment in that area.

The A300, A310, A330, and A340 all share the same fuselage mold lines, differing only in length. The noses and tail sections are all identical.

You are correct. As a consequence of the Airbus design, the rear cabin floor slopes up very slightly so as to accommodate more cans in the aft hold. The windows must slope up with the cabin or they would be next to the feet of the pax sitting in the very rear.

This will not be the case on the A350 and it is not the case on the A380.
-Doc Lightning-

"The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars."
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Viscount724
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Joined: Thu Oct 12, 2006 7:32 pm

RE: A330/340 Window Configuration?

Wed Jul 11, 2012 10:46 pm

Quoting DocLightning (Reply 4):
Quoting Viscount724 (Reply 3):
I believe that design was to permit more full-size cargo containers to be carried on the lower deck. Doesn't make any difference to passengers (and it's hardly even noticeable in the cabin), but if the floor didn't have that slight curve you would lose several inches of height in the cargo compartment in that area.

The A300, A310, A330, and A340 all share the same fuselage mold lines, differing only in length. The noses and tail sections are all identical.

I believe that's not correct for the original A300B2/B4 which had a different rear fuselage profile than the later A300-600R which used the same rear fuselage profile as the A310. That's quite obvious in photos.

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