PizzaPolli
Posts: 234
Joined: Sun Oct 21, 2001 8:10 am

That Opening/hole On A DC-10

Wed Jun 18, 2003 4:35 pm

What is that opening that you see on the fuselage of DC-10 in front of the wing below the window line. It looks like a fuel door thats sideways, but of couse is not. Is it some sort of air intake for the APU? Heres a link to a picture with one showing, its right below the G in Varig:
http://www.airliners.net/open.file/361578/L/
 
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mighluss
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Joined: Tue Oct 02, 2001 12:11 am

RE: That Opening/hole On A DC-10

Wed Jun 18, 2003 5:00 pm


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RyDawg82
Posts: 833
Joined: Fri Sep 14, 2001 8:30 am

RE: That Opening/hole On A DC-10

Wed Jun 18, 2003 5:23 pm

Here is everything you could wish to know about that opening.....Ryan
http://www.airliners.net/discussions/tech_ops/read.main/32721
You can take the pup out of Alaska, but you can't take the Alaska out of the pup.
 
srbmod
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Joined: Tue Mar 20, 2001 1:32 pm

RE: That Opening/hole On A DC-10

Wed Jun 18, 2003 11:03 pm

I was curious about that myself, I saw one of World's DC-10Fs parked over by South Cargo @ ATL last week, and noticed that valve and was curious about it.
 
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iahcsr
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RE: That Opening/hole On A DC-10

Thu Jun 19, 2003 12:25 am

For those who choose not to read the link above, the short answer is that it's part of the pressurization system. The DC-9/MD-80 has a similar valve design, but it's located below the left engine, so it's not as visible.
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JETPILOT
Posts: 3094
Joined: Tue May 18, 1999 6:40 am

RE: That Opening/hole On A DC-10

Sat Jun 21, 2003 8:00 am

It's a pressurization dump valve. DC10's arent pressurized on the ground. When the plane lands the dump valve opens to equalize pressurization if the auto/manual system fails to keep the pressurization schedule which should relieve pressure 1000' (?) above field elevation.

JET

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