travelavnut
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CC-117: Thing In The Roof

Mon Jun 06, 2011 11:07 am

Sorry for the cryptic title, but I didn't know how else to describe it  

In the picture below of a Canadian C-17 there is something strapped to the ceiling;


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Photo © Matthew Lee - Contrails Aviation Photography



Can anybody tell me what it is? My first idea was maybe a raft or something similar, but it doesn't look like the right size. Also in an emergency I can't really see this being deployed very rapidly.

So, anybody?  
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n901wa
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RE: CC-117: Thing In The Roof

Mon Jun 06, 2011 11:22 am

I might be wrong, but if I remember right. Its the outside of the Center Wing Fuel Tank Fuel Shroud. Its a liner with a drain to catch any fuel that might leak from the center wing tank from leaking into the Cabin. HTH
 
cargotanker
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RE: CC-117: Thing In The Roof

Mon Jun 06, 2011 1:29 pm

Quoting N901WA (Reply 1):
I might be wrong, but if I remember right. Its the outside of the Center Wing Fuel Tank Fuel Shroud. Its a liner with a drain to catch any fuel that might leak from the center wing tank from leaking into the Cabin. HTH

Bingo. The straps are absent on the earlier non-ER models. The shape mirrors that of the wing box.
 
travelavnut
Topic Author
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RE: CC-117: Thing In The Roof

Mon Jun 06, 2011 2:11 pm

Quoting cargotanker (Reply 2):
Quoting N901WA (Reply 1):
I might be wrong, but if I remember right. Its the outside of the Center Wing Fuel Tank Fuel Shroud. Its a liner with a drain to catch any fuel that might leak from the center wing tank from leaking into the Cabin. HTH

Bingo. The straps are absent on the earlier non-ER models. The shape mirrors that of the wing box.



Thanks guys! Following A.net tradition the correct answer was light-years away from what I was thinking initially 


So do all high-wing aircraft have this "feature"? Like the C-13/C-5?
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zanl188
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Joined: Sat Oct 21, 2006 9:05 pm

RE: CC-117: Thing In The Roof

Tue Jun 07, 2011 12:23 am

Quoting travelavnut (Reply 3):
So do all high-wing aircraft have this "feature"? Like the C-13/C-5?

Readily visible in the C-130:


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Photo © André Alves



In the C-5, however, the wingbox is above the cargo compartment and does not intersect it. It does seperate the troop compartment from the flight deck however.
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