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jeckPDX
Topic Author
Posts: 250
Joined: Sun Nov 16, 2003 6:12 am

757/767 Multiple Exit Configurations

Wed Jun 30, 2004 6:08 pm

I am hoping someone will be able to answer this question. I've noticed multiple door/exit locations on Boeing 757-200 and 767-300 aircraft. These seem to be the only aircraft Boeing has produced that have offered this option to operators. What exactly is the reason for this option? What are the benefits of each configuration?

Any ideas or suggestions appreciated.

JeckPDX
"Beer is proof that God Loves us and wanted People to be Happy" - Ben Franklin
 
MD80Nut
Posts: 975
Joined: Thu Jul 31, 2003 6:43 am

RE: 757/767 Multiple Exit Configurations

Wed Jun 30, 2004 10:23 pm

It's all about satisfying the airlines. Some wanted one configuration, some another. They didn't want to lose any potential orders so they accommodated them.

cheers, Ralph
Fly Douglas Jets DC-8 / DC-9 / DC-10 / MD80 / MD11 / MD90 / 717
 
na
Posts: 9781
Joined: Sun Dec 12, 1999 3:52 am

RE: 757/767 Multiple Exit Configurations

Wed Jun 30, 2004 10:36 pm

Another aircraft type that offered a variety of exit-options were the DC-8 stretch versions (DC-8-61/71 and DC-8-63/73).
 
mikeymike
Posts: 402
Joined: Thu May 18, 2000 6:52 am

RE: 757/767 Multiple Exit Configurations

Thu Jul 01, 2004 3:59 am

For example, the 767-300 has 3 different door configs:

A33A
AA3A
AAIA

Type A rated door is your typical passenger entry door (42x72 or near that)
Type 3 door is your typical overwing hatch exit
Type I door is a smaller emergency exist not typically used for Pax Embarquation (roughly 24 x 62)

As result fo the door sizes, their are different Regulatory rules surrounding the amount of space for emergency egress during a survivable accident. As such, a larger door requires both more space physically and more space for egress.

An A33A config allows for the most pure passenger seating area because the overwing exits take up considerably less egress spave.

Some airlines prefer to board at Door 2 (or both doors 1 and 2) such that F-Class pax are not bothered by Y-Class pax trapsing through the aisles.

The 4-door config was the original design, but the other came shortly there after.

Most airlines operate solely one type or the other for various reasons. Delta operated 2 types (primarily the A33A) and some AA3A. Someone like AirFrance which has only 6 767's operates all three types. Not sure why.

Hope this helps
Mike
 
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jetjack74
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RE: 757/767 Multiple Exit Configurations

Thu Jul 01, 2004 10:20 am

Well Airbus in some ways, has an alternative door offering for the 321/330/340. Some of the aircraft have a narrow door at 3L&R, and some have a wide door
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NW7E7
Posts: 480
Joined: Sun Jun 20, 2004 11:43 am

RE: 757/767 Multiple Exit Configurations

Thu Jul 01, 2004 10:35 am

This should make it easier....

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Photo © Dan Hornseth
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Photo © Phil Gilston


The second 757 has that smaller emergency door.

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Photo © Dale Coleman
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Photo © Irfan CALISKAN


The second 767 has three doors with a smaller emergency door.

NW7E7
 
AJ
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RE: 757/767 Multiple Exit Configurations

Thu Jul 01, 2004 10:36 am

Boeing 757-200s have always come with an option of two overwing Type III exits per side or a single Type II behind the wing. The Boeing 767-200 has an option for one or two overwing Type III exits. Even the Boeing 727-200 came with an option for additional exits forward of the wing, United being the only airline I can think of that took this up.

Airbus A330/A340 Classics have an option for a Type I or Type II as doors 3 as Jetjack has said.

Boeing 747-100/-200s had an option for one or two exits on the upper deck, with the side the one exit was on an option as well!

The main motivator behind which exits are fitted is the passenger capacity for evacuation ability, as Mike has said.
 
WidgetBoi
Posts: 1395
Joined: Wed Mar 17, 2004 9:57 am

RE: 757/767 Multiple Exit Configurations

Thu Jul 01, 2004 10:47 am

Doesn't Airbus offer two overwing exits on the A319, too?

jeremy
 
Iberia340600
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RE: 757/767 Multiple Exit Configurations

Thu Jul 01, 2004 11:24 am

Widgetboi:

If I am not mistaken....Easyjet is the only airline to have the A319 with two overwing exits due to its high density configuration. I believe it has to do with how many passengers it is configured for. Since Easyjet has that high density configuration it was required to have two overwing exits on each side.

There was another post a while back about it. Thats where I first noticed it.

Federico
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