david b.
Topic Author
Posts: 2894
Joined: Fri Jun 15, 2001 7:18 pm

What Are Those Nitches

Tue Apr 02, 2002 1:19 pm

What are those small triangular nitches on the bottom of the plane?

Click for large version
Click here for full size photo!

Photo © Jason Taperell

Teenage-know-it-alls should be shot on sight
Posts: 3961
Joined: Fri Aug 25, 2000 1:18 am

RE: What Are Those Nitches

Tue Apr 02, 2002 1:37 pm

They are the intakes for the air conditioning packs. There's 3 on the 747, 3 on the DC-10... and thats all fun facts that i can pull out of my rear-end at the moment.
Chicks dig winglets.
Posts: 6199
Joined: Wed May 23, 2001 12:58 pm

RE: What Are Those Nitches

Tue Apr 02, 2002 1:57 pm

I hope you wiped them off before posting. That's what they are though.

 Laugh out loud
The day you stop learning is the day you should die.
Posts: 3219
Joined: Sun Mar 19, 2000 9:48 pm

RE: What Are Those Nitches

Wed Apr 03, 2002 1:50 am

To be more specific, these ram air intakes are used to direct cooling air to the air conditioning (pack) heat exchangers. The ram air enters at the intake and exits at the 3 square exhaust ports several feet aft on the belly.

The air entering these "scoops" do not enter the cabin for your breathing pleasure.  Smile
You're only as good as your last departure.
Posts: 1877
Joined: Sun Jan 13, 2002 6:53 am

RE: What Are Those Nitches

Wed Apr 03, 2002 6:55 am

They are called Naca Scoops or Naca ducts to ACM's.


Who is online

Users browsing this forum: fr8mech and 23 guests

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos