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PipoA380
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What Is That Red Window?

Sat Nov 05, 2005 2:10 am

Hey!

Just wanted to know, I always see this "red window" on the testplanes we see a lot now, including the A380 and B777-240LR

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Simple question: what is it?

Thanks for your help!
Philippe
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Matt72033
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RE: What Is That Red Window?

Sat Nov 05, 2005 2:18 am

red parts are normally test equipment i believe!
 
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PipoA380
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RE: What Is That Red Window?

Sat Nov 05, 2005 2:29 am

Quoting Matt72033 (Reply 1):

Yes that was my guess too. Here on this pic we can see it from the inside.


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Would it be something mesuring the pressure on the fuselage?
It's not about AIRBUS. it's not about BOEING. It's all about the beauty of FLYING.
 
Matt72033
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RE: What Is That Red Window?

Sat Nov 05, 2005 2:34 am

Quoting PipoA380 (Reply 2):
Would it be something mesuring the pressure on the fuselage?

probably, give an indication of the differential pressure the windows must withstand!
 
FredT
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RE: What Is That Red Window?

Sat Nov 05, 2005 6:05 am

A pressure reference in the window line would not be much use. Too many things to disturb the flow. There's a multitude of other reasons to have something poking out into the airstream though.

How about emergency depressurization? On the civilian test flights I've been in contact with, that was done through a special door with a valve. Something about the idea doesn't sound too likely though...
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EMBQA
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RE: What Is That Red Window?

Sat Nov 05, 2005 8:05 am

The red blanking windows are just were test equipment is set up to take mesurments.


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HAWK21M
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RE: What Is That Red Window?

Sat Nov 05, 2005 4:58 pm

Looks like Test Equipment provision.
regds
MEL
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EI747SYDNEY
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RE: What Is That Red Window?

Sat Nov 05, 2005 10:36 pm

Definately test equipment. Most of the aircraft is filled with all types of equipment used for pressure, ballast etc. However the specific function of this particular red window. I have no idea.

Rob
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rendezvous
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RE: What Is That Red Window?

Mon Nov 07, 2005 11:17 am

Emergency escape possible too?
 
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HAWK21M
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RE: What Is That Red Window?

Mon Nov 07, 2005 2:45 pm

Quoting Rendezvous (Reply 8):
Emergency escape possible too

Pls elaborate.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
FredT
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RE: What Is That Red Window?

Tue Nov 08, 2005 3:33 am

Quoting Rendezvous (Reply 8):
Emergency escape possible too?



Quoting HAWK21M (Reply 9):

Pls elaborate.

In case something goes terribly wrong and you decide it is time for the test crew to take a silk ride, you need to depressurize the aircraft to get the doors open. Special doors with valves is one way I'm familiar with, but there could be other solutions.

I think we have reached the point where we know that we do not know until somone who knows comes along.  Smile
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aloges
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RE: What Is That Red Window?

Tue Nov 08, 2005 3:51 am

I can't remember where on TV I've seen it, but a documentary on the A380 said the emergency exit on that plane was a hatch whose cover needed to be blown away (with some sort of explosive) for the crew to escape. I doubt a crew would be able to open the 1L door during flight without being severely injured; they'd also risk being sucked in by the engines and hitting the wing or tail exiting anywhere but the belly.
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EMBQA
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RE: What Is That Red Window?

Tue Nov 08, 2005 4:19 am

There is or was a second thread running on these 'red windows' over the weekend. The picture they choose showed the escape hatch clearly on the A380. It looked like it was built into the cargo door.
"It's not the size of the dog in the fight, but the size of the fight in the dog"
 
manzoori
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RE: What Is That Red Window?

Tue Nov 08, 2005 4:30 am

These shots show the crew escape hatch:-


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Rez
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aloges
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RE: What Is That Red Window?

Tue Nov 08, 2005 6:44 am

Quoting Manzoori (Reply 13):
These shots show the crew escape hatch:-

Makes sense to put it there - it must be easier to change the cargo door than some fuselage panels if the escape hatch mechanism attached to it fails big time.
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Fokker Lover
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RE: What Is That Red Window?

Tue Nov 08, 2005 7:44 am

If I remember correctly, when the F28 was was undergoing flight tests, there was a pretty elaborate escape system. Floor beams behind the cockpit were removed. The flight crew was attached to a cable system that would yank them through the floor, and out the FWD cargo door, after it was blown off its hinges.
I guess compared to dying this would be the lesser of two evils, but that would be one hell of a rough ride with some guaranteed injuries.
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PipoA380
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RE: What Is That Red Window?

Tue Nov 08, 2005 9:22 am

Thanks for all the replies mates! But it still seems to be an open question  Wink If anyone knows for sure, better show up!  wave 
Best regards!
Philippe
It's not about AIRBUS. it's not about BOEING. It's all about the beauty of FLYING.
 
EMBQA
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RE: What Is That Red Window?

Tue Nov 08, 2005 10:15 am

Quoting PipoA380 (Reply 16):
If anyone knows for sure, better show up!

As has been said above, they are were test equipment has been set up to take measurements. I have personally been on-board the Embraer 190 test aircraft and were each red window was some sort for test or measuring sensor was hooked up to it...... Air pressure, air temperature, laminar air flow etc.....
"It's not the size of the dog in the fight, but the size of the fight in the dog"
 
FTOHIST
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RE: What Is That Red Window?

Tue Nov 08, 2005 10:25 am

I work as a technician on the GE 747 engine testbed (N747GE), and we have many of those blankoffs. Some of them are used for icing tests, where we stick a probe out through the plate into the airstream and then measure the ice buildup. Other plates on our airplane have TAT probes mounted through them, for extra temperature measurements into our data system that are independent of the aircraft systems. We have quite a few blankoffs that are there for other special purposes should the requirement pop up.

I have also worked on board the ERJ170 test airplanes, and seen roughly the same setup. I would imagine that airframe flight testing uses more varied equipment than we do for powerplant development.
 
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HAWK21M
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RE: What Is That Red Window?

Tue Nov 08, 2005 4:21 pm

Quoting Aloges (Reply 14):
Makes sense to put it there - it must be easier to change the cargo door than some fuselage panels if the escape hatch mechanism attached to it fails big time.

Any Inside View pics Available.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
grandtheftaero
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RE: What Is That Red Window?

Wed Nov 09, 2005 3:50 am

This summer I was based of out Boeing Field as a flight test participant on WD001, the 772LR pictured above. That particular blank-off has an OAT sensor mounted in it (IIRC). The other side of the plane has a blank-off with both a pitot tube and an OAT sensor in it.

Someone please correct me if I've gotten them mixed up.
 
aloges
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RE: What Is That Red Window?

Wed Nov 09, 2005 8:17 am

Quoting HAWK21M (Reply 19):
Any Inside View pics Available.

I'm afraid not; I haven't been able to find any online (tought I didn't check airbus.com) and I can't remember what TV channel I saw that on. Basically it looked like a red tube that the crew would jump into to leave the aircraft; of course after blowing the hatch off.
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Fokker Lover
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RE: What Is That Red Window?

Wed Nov 09, 2005 8:49 am

Aloges
This might help your search.

Crew Escape System Development


Due to the configuration of the airplane, there was little likelihood

that any manual bailout scheme would be successful


Early in 1979, began searching for something better


As luck would have it, Stanley Aviation and Stencel had developed

such a system for Airbus


Extensive system and physiological testing had been.....

This is where I found that.

PPT] PowerPoint PresentationFile Format: Microsoft Powerpoint 97 - View as HTML
Flight Test jobs. Calspan Simulations. Crew escape system development. Spin chute system development. Calspan Simulations ...
www.flighttestsafety.org/ workshops/FTSC03/learfan/learfan.pps - Similar pages
10,000 years ago we would have eaten you. Today, we drag you along and allow you to pollute the gene pool.
 
aloges
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RE: What Is That Red Window?

Wed Nov 09, 2005 9:17 am

Quoting Fokker Lover (Reply 22):
Aloges
This might help your search.

Ah, thanks! I'm sure HAWK21M appreciates it as well.
Don't cry because it's over, smile because it happened.
 
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HAWK21M
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RE: What Is That Red Window?

Thu Nov 10, 2005 1:54 am

Quoting Fokker Lover (Reply 22):
www.flighttestsafety.org/ workshops/FTSC03/learfan/learfan.pps

The link does not work.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
aloges
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RE: What Is That Red Window?

Thu Nov 10, 2005 2:21 am

Quoting HAWK21M (Reply 24):
The link does not work.

You need to remove the space between ".org/" and "work". There are some videos that PPS file links to, but the links seem to be broken.
Don't cry because it's over, smile because it happened.
 
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Starlionblue
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RE: What Is That Red Window?

Thu Nov 10, 2005 3:08 am

Quoting Aloges (Reply 11):
I doubt a crew would be able to open the 1L door during flight without being severely injured; they'd also risk being sucked in by the engines and hitting the wing or tail exiting anywhere but the belly.

Also, moving the L1 door at altitude and/or if there is any kind of maneovring is probably impossible.
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo
 
FredT
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RE: What Is That Red Window?

Thu Nov 10, 2005 6:57 am

But what if you have an African swallow, a European swallow, a string, a purpose built door to replace the plug door and a coconut?

Notice how I cleverly snuck the key point in?  Wink

As for jumping and trajectory relative to the airframe, inertia is a good thing to have. The airspeed will of course have to be carefully considered, and a head first dive would be recommended.  Smile

Try to google for the escape system of the space shuttle. Yikes!
I thought I was doing good trying to avoid those airport hotels... and look at me now.
 
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HAWK21M
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RE: What Is That Red Window?

Thu Nov 10, 2005 7:32 pm

Quoting Aloges (Reply 25):
You need to remove the space between ".org/" and "work". There are some videos that PPS file links to, but the links seem to be broken.

The File opens but some Video links don't.
Thanks Anyway.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
JHSfan
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RE: What Is That Red Window?

Thu Nov 10, 2005 10:06 pm

Quoting HAWK21M (Reply 28):
The File opens but some Video links don't

Try to open this URL. It leads to a directory with the PPS file and some videos.

Links does not work because the video links in the PPS file contains the directory name "LearFan". But the real name is "learfan". Lower case L and F!

- JHSfan
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