Moderators: jsumali2, richierich, ua900, PanAm_DC10, hOMSaR

 
User avatar
seb146
Topic Author
Posts: 23892
Joined: Wed Dec 01, 1999 7:19 am

What Is This

Sat Dec 02, 2000 5:53 pm

I have seen something on 737s that I don't know what it is. If you look below the registration number back from the door, there is a "triangle" section missing from the body. What is this for? Thanks in advance

Click for large version
Click here for full size photo!

Photo © Joe Fernandez - Aviation Photography of Miami

 
OO-VEG
Posts: 1250
Joined: Mon Oct 02, 2000 5:31 pm

RE: What Is This

Sat Dec 02, 2000 6:28 pm

This has to something with the aerodynamics. But I don't know what exactly...
 
astrojet
Posts: 553
Joined: Thu Aug 31, 2000 9:11 pm

RE: What Is This

Sat Dec 02, 2000 6:44 pm

I guess its an air intake for something, but like OO-VEG I don,t know exactly.
 
astrojet
Posts: 553
Joined: Thu Aug 31, 2000 9:11 pm

RE: What Is This

Sat Dec 02, 2000 9:10 pm

Hi again,
After looking to some photos I think it could be the APU intake.
Anybody knows it for sure?
 
Night Hawk
Posts: 264
Joined: Sun Jul 25, 1999 11:18 am

RE: What Is This

Sat Dec 02, 2000 9:29 pm

Hi There

It's the intake for the APU, Im not sure about the 737-200 as I've never seen one b4 but Im fairly sure there's one on the other side too.

Regards

Greg
 
FLY 8
Posts: 330
Joined: Sat Dec 02, 2000 5:48 am

RE: What Is This

Sat Dec 02, 2000 9:29 pm

Hi there!

That´s a NACA air inlet. This inlet is specially designd to take much air in with the least drag! Almost all airplanes have this in different sizes! Also gliders, just to get fresh air into the cabin.
In this case it´s used for the ECS packs. Enviromental Conditioning System - air for the airconditioning system!
Look at other airplane, for example at the Dornier 328, there you will see those NACA inlets below the wing!

Hope to help you!

Sincerly, Benjamin

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