gulfstream650
Posts: 201
Joined: Wed Mar 19, 2008 6:58 pm

What Is The Vent On The Side Of This DC-10?

Wed Jun 02, 2010 2:18 am

There is a vent of some sort on this aircraft to the left of the number 1 engine in this photo. What is it?

Many thanks!


View Large View Medium
Click here for bigger photo!

Photo © Juan Carlos Guerra - FlyAPM

I don't proclaim to be the best pilot in the world but I'm safe
 
BladeLWS
Posts: 358
Joined: Wed Dec 14, 2005 12:41 pm

RE: What Is The Vent On The Side Of This DC-10?

Wed Jun 02, 2010 2:27 am

I'm gonna say its an outflow valve for the cabin pressure.
 
c5load
Posts: 344
Joined: Tue Sep 16, 2008 9:40 pm

RE: What Is The Vent On The Side Of This DC-10?

Wed Jun 02, 2010 2:38 am

Quoting BladeLWS (Reply 1):
I'm gonna say its an outflow valve for the cabin pressure.

What about an air conditioning intake vent?
"But this airplane has 4 engines, it's an entirely different kind of flying! Altogether"
 
BladeLWS
Posts: 358
Joined: Wed Dec 14, 2005 12:41 pm

RE: What Is The Vent On The Side Of This DC-10?

Wed Jun 02, 2010 2:58 am

Quoting c5load (Reply 2):
What about an air conditioning intake vent?

Those should be on the nose infront of the nose wheel, packs intake and avionics cooling, an intake wouldn't have a valve like that.

[Edited 2010-06-01 19:58:43]
 
Fly2HMO
Posts: 7207
Joined: Sat Jan 24, 2004 12:14 pm

RE: What Is The Vent On The Side Of This DC-10?

Wed Jun 02, 2010 3:09 am

Quoting BladeLWS (Reply 1):
I'm gonna say its an outflow valve for the cabin pressure.

Me thinks so too.

Quoting c5load (Reply 2):
What about an air conditioning intake vent?

Nope. Intakes are purposely made to be able to, well, intake as much air as efficiently as possible. A random flat hole on the side of the fuselage will not have air flowing into it, and therefore would not work as an intake. Intakes usually look like a teardrop with a flat bottom or like a wedge of sorts, like on the nose of this plane.

A more obvious pic:


View Large View Medium
Click here for bigger photo!

Photo © Alevik



[Edited 2010-06-01 20:12:12]
 
tdscanuck
Posts: 8572
Joined: Wed Jan 11, 2006 7:25 am

RE: What Is The Vent On The Side Of This DC-10?

Wed Jun 02, 2010 5:17 am

Quoting Gulfstream650 (Thread starter):
There is a vent of some sort on this aircraft to the left of the number 1 engine in this photo. What is it?

Definitely an outflow valve...the visible flapper is a dead giveaway.

Quoting c5load (Reply 2):
What about an air conditioning intake vent?

Those are farther forward...you can see two NACA scoop inlets just below and aft of the "V" in "PETETE V" on the nose.

Tom.
 
CosmicCruiser
Posts: 2049
Joined: Tue Feb 22, 2005 3:01 am

RE: What Is The Vent On The Side Of This DC-10?

Wed Jun 02, 2010 2:59 pm

tdscanuck is right. Yes, it's the outflow valve. Same on the MD-11 as well. You can see the pack inlet doors on the lower nose with the third not visible on the other side.
 
KELPkid
Posts: 5247
Joined: Wed Nov 02, 2005 5:33 am

RE: What Is The Vent On The Side Of This DC-10?

Thu Jun 03, 2010 12:44 am

Quoting tdscanuck (Reply 5):
Definitely an outflow valve...the visible flapper is a dead giveaway.
Quoting CosmicCruiser (Reply 6):
tdscanuck is right. Yes, it's the outflow valve. Same on the MD-11 as well. You can see the pack inlet doors on the lower nose with the third not visible on the other side.

Is it just me, or am I mistaken in the (now disproved) belief that the cabin outflow valve is usually located at the rear of the pressure dome in the fuselage?
Celebrating the birth of KELPkidJR on August 5, 2009 :-)
 
Fly2HMO
Posts: 7207
Joined: Sat Jan 24, 2004 12:14 pm

RE: What Is The Vent On The Side Of This DC-10?

Thu Jun 03, 2010 12:48 am

Quoting KELPkid (Reply 7):
is usually located at the rear of the pressure dome in the fuselage?

That's how it is usually. However, I don't know of any reason why it HAS to be back there. Maybe somebody can enlighten us.
 
zanl188
Posts: 3447
Joined: Sat Oct 21, 2006 9:05 pm

RE: What Is The Vent On The Side Of This DC-10?

Thu Jun 03, 2010 12:59 am

Just FYI, this question probably should be in an a.net FAQ. Comes up from time to time.

What's This Little Door On The DC-10? (by Starlionblue May 2 2005 in Tech Ops)
Open Panel On The Port Side On The DC-10 (by Alphafloor Jan 12 2005 in Tech Ops)

[Edited 2010-06-02 18:00:35]
Legal considerations provided by: Dewey, Cheatum, and Howe
 
boeing767mech
Posts: 805
Joined: Fri Dec 15, 2000 5:03 pm

RE: What Is The Vent On The Side Of This DC-10?

Thu Jun 03, 2010 1:23 am

Quoting KELPkid (Reply 7):
Is it just me, or am I mistaken in the (now disproved) belief that the cabin outflow valve is usually located at the rear of the pressure dome in the fuselage?
Quoting Fly2HMO (Reply 8):
That's how it is usually. However, I don't know of any reason why it HAS to be back there. Maybe somebody can enlighten us.

The A330 and A340 has the outflow valves in the belly behind the wing to body fairings.

The 777 has two outflow valves one near the aft pressure bulkhead, and the other in the belly just behind nose landing gear.

The JS3101 and 3201 have the outflow valve on the fwd pressure bulkhead near the co-pilots feet.

I was told by an instructor in a gen fam class on the 767 that they put the outflow valve near the pressure bulkhead to help aid the flow of air in the cabin. Since most of the air comes from overhead ducts and the outflow valves are located below the cabin floor area. But then that was what he explained. All I know is if it is broken I fix it, where ever it is located.

David
Never under-estimate the predictably of stupidty
 
tdscanuck
Posts: 8572
Joined: Wed Jan 11, 2006 7:25 am

RE: What Is The Vent On The Side Of This DC-10?

Thu Jun 03, 2010 4:29 am

Quoting KELPkid (Reply 7):
Is it just me, or am I mistaken in the (now disproved) belief that the cabin outflow valve is usually located at the rear of the pressure dome in the fuselage?

Many aircraft have two, in which case you usually have one forward and one aft.

Tom.
 
User avatar
HAWK21M
Posts: 29867
Joined: Fri Jan 05, 2001 10:05 pm

RE: What Is The Vent On The Side Of This DC-10?

Sat Jun 05, 2010 10:07 am

Main Outflow Valve.
regds
MEL.
I may not win often, but I damn well never lose!!! ;)

Who is online

Users browsing this forum: Alexa [Bot] and 12 guests