pavillon

05:09 Nov 25, 2015 

see refs.

https://upload.wikimedia.org/wikipedia/commons/e/e8/Airbus_A...

if you look at the cross section of a fuselage, where do you anything resembling a "floor"?

back to square one: "un pavillon" is primarily an enclosed space

BTW I have never heard of "le pavillon" in the meaning of "ceiling" - not the most frequent meaning
although "le pavillon" could also be a flag, as in "battre pavillon français" but then "the floor of the flag" is even less likely than "the floor of the ceiling" ...

19:06 Nov 23, 2015 

This says "ceiling panels", which makes a lot of sense to me:
http://www.translatorscafe.com/tcterms/en-US/thQuestion.aspx...

19:03 Nov 23, 2015 

That doesn't make sense in this context.

17:03 Nov 23, 2015 

Le sigle FAI peut désigner : la Fédération aéronautique internationale ;
I.e. the ones who emit criteria/rules/regulations etc.

16:42 Nov 23, 2015 

Larousse says "partie supérieure de la caisse d'un véhicule (automobile, wagon, autorail, locomotive électrique, etc.), couramment appelée « toit ».
I think it may be a section of the fuselage, and I wonder if that's the F in FAI. Do you know what this stands for?

15:22 Nov 23, 2015 

of words - Asker was assuming that "un pavillon" is only what is the cover/the roof above some space - then of course "le plancher de pavillon" (="the floor of the roof") sounds like a total nonsense.

But if you take another possible meaning - that "un pavillon" is a kind of covered space - a volume with a least a roof ("le pavillon" in a narrower meaning) and a floor, then "le plancher de pavillon" makes sense.

This being an airplane, if you look at how "le pavillon" is used, they are talking of the whole space inside the plane reserved for passengers - the cabin(?) IOW "le plancher de pavillon" = the floor of the passenger cabin

15:02 Nov 23, 2015 

I don't understand your comment, Daryo. This is not about the canopy (verrière) as far as I can see.

14:58 Nov 23, 2015 

A330 GMF is a model of Airbus

14:49 Nov 23, 2015 

can also mean "the whole volume under the canopy" not only the "cover from above" - in which case it does start making sense: this whole volume MUST have some lower limits too (i.e. a floor), even if lateral boundaries can be more or less open