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737 Door Outline Question(s)  
User currently offlineSXDFC From United States of America, joined Dec 2007, 2316 posts, RR: 21
Posted (5 years 11 months 4 days 16 hours ago) and read 5176 times:

Hey Guys:

Here I go again with another 737 question, I noticed on a few 737's they have this cool door outline that curves before the actual door ends. My question is why are the outlines painted like this. Also is Southwest going to incorporate this design onto its 73NG's too?

Heres an example :


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Photo © Gert Rosmann - AirTeamImages




ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.
28 replies: All unread, showing first 25:
 
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 1, posted (5 years 11 months 4 days 15 hours ago) and read 5173 times:

I have no idea what you're seeing or talking about...??? Can you better point it out...? The grey band around the door...? Every single commercial aircraft in the world has that. It's design is to aid rescue workers in finding the door cut out. My guess would be it will draw your eyes towards it. The chrome trim at the bottom..? Nearly every single commercial aircraft has that as well. It protects the door sill from jetway damage

[Edited 2008-09-29 15:56:48]


"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineSXDFC From United States of America, joined Dec 2007, 2316 posts, RR: 21
Reply 2, posted (5 years 11 months 4 days 15 hours ago) and read 5160 times:



Quoting EMBQA (Reply 1):
I have no idea what you're seeing or talking about...??? Can you better point it out...? T

Sure heres a close up:

This close up comes from the picture taken by Rich Schlamp on Flickr.




The area I am talking about is circled in black.

From what I know the actual door its self fits the entire frame, so this is why I ask why the outline ends short of that chrome (dark colored) bottom.



ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.
User currently offlineRampkontroler From United States of America, joined Sep 2001, 859 posts, RR: 6
Reply 3, posted (5 years 11 months 4 days 14 hours ago) and read 5156 times:

What he is talking about is the fact that the bottom of the door is actually below the outline provided for it. It's easier to see in this shot:

http://www.airliners.net/photo/TUIfly/Boeing-737-7K5/1387959/L/

Whereas, it's more common for the outline to actually extend to the true bottom of the door as in these shots:

http://www.airliners.net/photo/Turki...Airlines/Boeing-737-4Y0/1403824/L/

http://www.airliners.net/photo/Briti...-Airways/Boeing-737-436/1403645/L/

Why the TUI aircraft outline doesn't seem to reach the actual bottom of the door, I don't know...


User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 4, posted (5 years 11 months 4 days 14 hours ago) and read 5165 times:



Quoting SXDFC (Reply 2):
Sure heres a close up:

That is the bumper plate I mentioned above... most all commercial aircraft...including Southwest.. have them



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 5, posted (5 years 11 months 4 days 14 hours ago) and read 5162 times:



Quoting SXDFC (Reply 2):
Sure heres a close up:

That is the bumper plate I mentioned above... most all commercial aircraft...including Southwest. I don't understand why that airline elected to 'shorten up' the door band and not fully out line it. I've never seen that before



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineStarlionblue From Greenland, joined Feb 2004, 17029 posts, RR: 67
Reply 6, posted (5 years 11 months 4 days 14 hours ago) and read 5159 times:

Escape slide hatch outline?


"There are no stupid questions, but there are a lot of inquisitive idiots."
User currently offlineSXDFC From United States of America, joined Dec 2007, 2316 posts, RR: 21
Reply 7, posted (5 years 11 months 4 days 14 hours ago) and read 5157 times:

EMBQA:

This is what I am talking about- its not the bumper plate :



[quote=Rampkontroler,reply=3]What he is talking about is the fact that the bottom of the door is actually below the outline provided for it. It's easier to see in this shot:

http://www.airliners.net/photo/TUIfly/Boeing-737-7K5/1387959/L/[/quote

as you can see the door its self ends at the bumperplate, but the actual door outline ends about a foot before it- what I am talking about is the actual door outline ( which is a light gray)



ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 8, posted (5 years 11 months 4 days 14 hours ago) and read 5155 times:



Quoting SXDFC (Reply 7):

This is what I am talking about- its not the bumper plate :

For some reason this airline decided to not fully outline the door. Why I don't know.....



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineSXDFC From United States of America, joined Dec 2007, 2316 posts, RR: 21
Reply 9, posted (5 years 11 months 4 days 14 hours ago) and read 5153 times:

It seems like this is also found on the Airbus planes as well:



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Photo © Michael Carter



Sure is interesting.....

For those still scracthing their heads at what I am talking about its in this picture, as you can clearly see where the outline ends and where the door ends.


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Photo © M�©sz�¡ros Tibor



[Edited 2008-09-29 16:44:20]


ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.
User currently offlineZANL188 From United States of America, joined Oct 2006, 3519 posts, RR: 0
Reply 10, posted (5 years 11 months 4 days 13 hours ago) and read 5135 times:
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This laymans explanation...

Remember this door is a plug type. To open it has to go in first and then out - that means that the door has to get smaller somehow. The painted area at the bottom of the door is a panel that opens inward when the door is opened - I'm guessing it's a pressure relief door as well as a means to make the pax door smaller.

Why it's painted differently than the WN 737 below... I have no idea....


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Photo © Tim Perkins


In the pix below you can see how the panel at bottom of the door folds in just a bit...


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Photo © Marlo Plate - Iberian Spotters



[Edited 2008-09-29 17:35:48]


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User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 11, posted (5 years 11 months 4 days 13 hours ago) and read 5107 times:

Its a stainless steel threshold plate it is attach to the fuselage skin and the door opening . It protects the aluminum structure from the jetways and passengers that would step right on the edge of the door opening.

User currently offlineZANL188 From United States of America, joined Oct 2006, 3519 posts, RR: 0
Reply 12, posted (5 years 11 months 4 days 12 hours ago) and read 5103 times:
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Quoting 474218 (Reply 11):
Its a stainless steel threshold plate it is attach to the fuselage skin and the door opening .

The area under discussion is just above the item you mention.



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User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 13, posted (5 years 11 months 4 days 11 hours ago) and read 5065 times:

Quoting ZANL188 (Reply 12):
The area under discussion is just above the item you mention.

The only thing above the item I am talking a the door opening, or the door if its closed.

Enlarge the following picture it shows the stainless steel door threshold very clearly and that the door extends below the outlined area:




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Photo © Baires Aviation Photography


[Edited 2008-09-29 19:31:00]

[Edited 2008-09-29 19:31:48]

User currently offlineRampkontroler From United States of America, joined Sep 2001, 859 posts, RR: 6
Reply 14, posted (5 years 11 months 4 days 11 hours ago) and read 5056 times:



Quoting 474218 (Reply 13):
Enlarge the following picture it shows the stainless steel door threshold very clearly and that the door extends below the outlined area:

Yes...you guys are talking about the same thing, just saying it differently! It's apparent that on some aircraft, the door outline does not exactly outline the door. The initial poster noted that and wondered why. You are stating the same thing, but getting hung up on the threshold!


User currently offlineZANL188 From United States of America, joined Oct 2006, 3519 posts, RR: 0
Reply 15, posted (5 years 11 months 4 days 1 hour ago) and read 4988 times:
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Quoting 474218 (Reply 13):
The only thing above the item I am talking a the door opening, or the door if its closed.

There is a panel attached to the bottom of the door that folds inward on opening. It is not the threshold - the threshold is beneath it.



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User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 16, posted (5 years 11 months 3 days 23 hours ago) and read 4961 times:



Quoting ZANL188 (Reply 15):
There is a panel attached to the bottom of the door that folds inward on opening. It is not the threshold - the threshold is beneath it.

I think that panel is actually part of the door, not attached to it. In the picture below you can see the door, the panel and the stainless steel threshold.


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Photo © Jakub Nanowski - EPGD Spotters



User currently offlineZANL188 From United States of America, joined Oct 2006, 3519 posts, RR: 0
Reply 17, posted (5 years 11 months 3 days 22 hours ago) and read 4956 times:
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Quoting 474218 (Reply 16):
actually part of the door, not attached to it

How can something be part of the door... yet not attached to it? The panel moves inward when opening the door.



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User currently offlineHAWK21M From India, joined Jan 2001, 31679 posts, RR: 56
Reply 18, posted (5 years 11 months 3 days 22 hours ago) and read 4951 times:

Nicknamed the " Door scuff plate"
regds
MEL



Think of the brighter side!
User currently offlineLHRBFSTrident From UK - Northern Ireland, joined Nov 2006, 655 posts, RR: 0
Reply 19, posted (5 years 11 months 3 days 21 hours ago) and read 4926 times:



Quoting SXDFC (Thread starter):
few 737's they have this cool door outline that curves before the actual door ends. My question is why are the outlines painted like this. Also is Southwest going to incorporate this design onto its 73NG's too?

I've noticed this on newer a/c recently - mainly 737NGs and new A320s - even on new A330s.

I don't know why the door outline isn't painted all the way down to the scuff plate, but from an aesthetic point of view it certainly looks better.


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Photo © Simon Gregory - Jetwash Images

A330-200 EI-DUO

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Photo © A M Spalding

A330-300 EI-DUZ

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Photo © Stefan Sonnenberg

A330-300 D-AERK



Next up: LAX-LHR NZ002 Y SkyCouch! LHR-LAX NZ001 Y
User currently offlineZANL188 From United States of America, joined Oct 2006, 3519 posts, RR: 0
Reply 20, posted (5 years 11 months 3 days 19 hours ago) and read 4898 times:
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Here's a 737 sans paint. The panels at the top and bottom of the door are plainly visible.


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Photo © Jet City Aviation Photography




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User currently offlineRampkontroler From United States of America, joined Sep 2001, 859 posts, RR: 6
Reply 21, posted (5 years 11 months 3 days 19 hours ago) and read 4887 times:

To get back to the original question, I think that maybe it's just a stylistic choice made by the airlines themselves. There doesn't seem to be a rhyme or reason as to who paints the door trim all the way to the bottom, and who doesn't.

I can't remember...is it actual paint, or is it an adhesive sticker?


User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 22, posted (5 years 11 months 3 days 18 hours ago) and read 4873 times:



Quoting ZANL188 (Reply 17):

How can something be part of the door... yet not attached to it? The panel moves inward when opening the door.

That was my point all along, it is an integral part of the door, not something just attached to the door.


User currently offlineZANL188 From United States of America, joined Oct 2006, 3519 posts, RR: 0
Reply 23, posted (5 years 11 months 3 days 17 hours ago) and read 4864 times:
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Quoting 474218 (Reply 22):
That was my point all along, it is an integral part of the door, not something just attached to the door.

Well ok... but the door has lots of parts, "integral" or attached - your choice. Personally I prefer all the parts be attached...  Smile

Now, why is the paint different on this bit of the door - attached or integral??



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User currently offlineRampkontroler From United States of America, joined Sep 2001, 859 posts, RR: 6
Reply 24, posted (5 years 11 months 3 days 17 hours ago) and read 4848 times:



Quoting ZANL188 (Reply 23):
Now, why is the paint different on this bit of the door - attached or integral??

I'm pretty sure that's what he wants to know! Just to be sure, (and with apologies to the guys who's photos I snipped the doors from), this is what he's talking about...

Big version: Width: 750 Height: 419 File size: 67kb


The door outline reaches all the way to the threshold on the Southwest bird, and comes up short on the Copa one. I think you realize that, but he wants to know why? It may be a silly question, but I have to admit that now I am curious too! I'm sure it all boils down to each airline's particular aesthetics.

As for this question: Also is Southwest going to incorporate this design onto its 73NG's too? I guess the answer would be "no" because the photo above is a 73NG, and it goes all the way to the threshold.


25 SXDFC : You hit the nail right on the head! Thank You! That is what I think too! it makes the plane look newer, unlike the old design.
26 ZANL188 : Except that the function of that piece of the hull very likely has something to do with your question. If we can understand the function it may be ea
27 Rampkontroler : The exact same airplane type can have it painted both ways, so I don't believe it has anything to do with any real 'purpose.' We know why the doors a
28 HAWK21M : The Difference is in the paint job.I wonder why the RH one was painted that way ie excluding the lower gate.The function is the same. regds MEL
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