LY777
Topic Author
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737 And 757 Cabins

Mon Nov 06, 2006 6:01 am

I know that the 757 is as narrow as the 737, and yet, I don't know why, the 757 is much more spacious and much more comfortable.
I flew TLV-CDG with both the 757 and the 737-800, and there is no comparison, the 757 is much roomier, the ceiling seems higher on the 757.The 738 is so small that I did not feel well during the flight.
Does someone know why there is such a difference between both?
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warreng24
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 6:13 am

The 757 and 737 are the exact same dimensions (width-wise) in terms of the fuselage.

However, the floor on the 757 is lowered slightly compared to the 737. This gives the appearance of a more "roomy" cabin.

So, yes the ceiling is higher on the 757.
 
walter747
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 6:14 am

a 757 is a streched version of the 737 and may be a bit wider.
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Jpax
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 6:34 am

Quoting Walter747 (Reply 2):
a 757 is a streched version of the 737 and may be a bit wider.

 eek . Enough said.
 
LY777
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 6:37 am

Why does the 757 nose is different from the 737?
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N766UA
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 7:03 am

Quoting Walter747 (Reply 2):
a 757 is a streched version of the 737 and may be a bit wider.

Both of those statements are dead wrong.

Quoting LY777 (Reply 4):
Why does the 757 nose is different from the 737?

Because they're different airplanes entirely.
 
skibum9
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 7:21 am

Quoting Walter747 (Reply 2):
a 757 is a streched version of the 737 and may be a bit wider.

Not at all true. The 757 and 737 have the exact same fuselage dimensions. Here is a schematic from AeroWenie, from another thread, that compares the two. IN that thread, AeroWeanie says:

"The 707, 727, 737 and 757 have identical upper lobes. The lower lobes are different on almost all of these models. Here is an overlay showing that the 737 and 757 share the same upper lobe. Magenta is a 757, black is a 737NG. The drawing does not show the slight taper lengthwise of the 757 lower lobe, which the 737 does not have."



http://i4.photobucket.com/albums/y120/Aeroweanie/Sideview.jpg

Quoting LY777 (Reply 4):
Why does the 757 nose is different from the 737?

The nose is different on the 757 because Boeing wanted commonality between the 757 and 767. Thus to accomodate the same cockpit design, a new nose, or section 41, was designed and is why you step down into the cokpit of a 757.
Tailwinds!!!
 
NWADC9
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 11:08 am

Wasn't the 757 supposed to be another version of the 727 in the beginning?
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N766UA
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 11:20 am

Quoting NWADC9 (Reply 7):
Wasn't the 757 supposed to be another version of the 727 in the beginning?

Yep. It is the replacement of the 727 and some of the early concepts were basically just twin engine 727s. Later concepts had the 757 as it looks now except with a 727 nose and a T-tail.
 
flydreamliner
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 11:49 am

Quoting Walter747 (Reply 2):
a 757 is a streched version of the 737 and may be a bit wider.

No, a 757 was designed clean sheet, it shares only the same fuselage cross-section with 737 (and 727 and 707 as well). It shares a good deal with 767, which is was co-developed with. The 757 isn't one bit wider.

Quoting LY777 (Reply 4):
Why does the 757 nose is different from the 737?

They are two totally different aircraft.

Quoting NWADC9 (Reply 7):
Wasn't the 757 supposed to be another version of the 727 in the beginning?

Originally Boeing planned it as a 727-300, but it became clear that a clean sheet aircraft was what the airlines wanted, and the 757 is what came of it.
"Let the world change you, and you can change the world"
 
JuniorSpotter
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 11:17 pm

And what would a B757 with 737 cockpit and T-tail look like?

http://www.cardatabase.net/modifiedairlinerphotos/photos/big/00006445.jpg
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Spoke2Spoke
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 11:48 pm

Thanks skibum9 (and AeroWenie) for the interesting diagrams and information.

JuniorSpotter, that t-tail 757 looks very odd. I'm glad they went with another design. The 757 has to be one of the best looking airplanes.
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roseflyer
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RE: 737 And 757 Cabins

Mon Nov 06, 2006 11:51 pm

Quoting JuniorSpotter (Reply 10):
And what would a B757 with 737 cockpit and T-tail look like?

The 757 switch from a t-tail to a conventional tail was done very late in the design process. There were scale models of the 757 prototype made with the 727 nose and a t-tail. These are collectors items, but do exist in the way that posters for the 7E7 dreamliner are also in existance.
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ultrapig
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RE: 737 And 757 Cabins

Tue Nov 07, 2006 12:45 am

Skibum9-

I've asked LY777's question many times and not gotten a straight answer-You seem to know what you are talking about but you don't address what the passenger see when he enters the cabin.

In short is the cabin of the two planes identical from the passenger's perspective or is the floor indeed a little lower so it seems more roomy-does eem more roomy to me or is that simply because the plane is higher off the group and I expect it to feel that way

Thanks!
 
RL757PVD
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RE: 737 And 757 Cabins

Tue Nov 07, 2006 1:27 am

While the width is the same, is there a difference in cabin height which creates a roomier feel? Also depending where the floor is on the curviature of the plane, could result in an increased passenger width, does that differ between the 737 and 757.
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jeffrey1970
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RE: 737 And 757 Cabins

Tue Nov 07, 2006 2:38 am

Actually the 757 is a stretched version of the 727. I know it sounds crazy but it is true.
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skibum9
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RE: 737 And 757 Cabins

Tue Nov 07, 2006 3:07 am

Quoting Ultrapig (Reply 13):
In short is the cabin of the two planes identical from the passenger's perspective or is the floor indeed a little lower so it seems more roomy-does eem more roomy to me or is that simply because the plane is higher off the group and I expect it to feel that way



Quoting RL757PVD (Reply 14):
While the width is the same, is there a difference in cabin height which creates a roomier feel? Also depending where the floor is on the curviature of the plane, could result in an increased passenger width, does that differ between the 737 and 757.

Alright I poured through the Boeing technical documentation on both the 737 and the 757, and the answer will surprise you. The floor is in the exact same place on both the 757 and the 737. There is some modest difference on the width of the cabin, with the interior trim-to-trim width of the 757 measuring 139.3 inches and the interior trim-to-trim width of the 737 measuring 139.2 inches. I highly doubt that anyone could tell the difference in width of POINT ONE inch. However the real difference between the two is the placement and hieght of the overhead baggage compartments. The overhead baggage compartment on the 757 is placed at 66.5 inches above the floor, while the compartment on the 737 is placed at 62.2 inches above the floor. The difference of 4.3 inches on the overhead baggage compartment probably explains why the 757 feels more roomy than the 737. It has nothing to do with the floor or the width.

The thing to remember is that the 757 was developed before the oversized roll-on-boards were invented, while the 737NG was developed afterwards, thus the 757 has smaller overhead baggage compartments. Many 757 have been or will be retrofitted to accomodate the larger carry-ons, while the 737NG already has bigger overhead baggage compartments.
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Viscount724
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RE: 737 And 757 Cabins

Tue Nov 07, 2006 8:18 am

Quoting Jeffrey1970 (Reply 15):
Actually the 757 is a stretched version of the 727. I know it sounds crazy but it is true.

That's not correct. The 757 is completely unrelated to the 727. Many airlines used the 757 replace 727s but it's a totally different design, much more closely related to the 767 than the 727. About the only thing the 757 has in common with earlier Boeing narrowbodies is the upper fuselage cross-section.
 
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1337Delta764
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RE: 737 And 757 Cabins

Tue Nov 07, 2006 9:21 am

Quoting Skibum9 (Reply 16):
737NG already has bigger overhead baggage compartments.

BTW, the 757-300 includes the 737NG-style overhead bins, as well as the 737NG curved ceiling:

Left: Unmodified 757-200 bins
Right: 757-300 737NG-style bins
Bottom: 737NG interior


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GQfluffy
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RE: 737 And 757 Cabins

Tue Nov 07, 2006 9:39 am

Quoting Viscount724 (Reply 17):
The 757 is completely unrelated to the 727.

More accurately, the 757 evolved from the 727-300X...
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ASMVPGOLD
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RE: 737 And 757 Cabins

Tue Nov 07, 2006 10:11 am

Since the fuselage is the same dim and the floor is in the same place, shouldn't they be able to accomodate the same cargo down below? (and maybe they can.. i don't know which is why i am asking the question.) Can a 757 take the cargo containers (i know the cargo doors are larger.)

I have known for years that they share the same dim.. but every time i get on a 757 i try to figure out where the extra "roominess" comes from.
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LY777
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RE: 737 And 757 Cabins

Wed Nov 08, 2006 9:06 pm

I have the same question.I really do not understand!!!
by the way, this may be ridiculous, but the cabin of the 737 Classics is roomier than the cabin of the 737NGs.I don't understand why!!!
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RIX
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RE: 737 And 757 Cabins

Thu Nov 09, 2006 7:43 am

I think, the answer is clear (see Reply 16): smaller overhead bins on "Classic" 737 and 757 interiors.
 
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1337Delta764
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RE: 737 And 757 Cabins

Thu Nov 09, 2006 9:35 am

I personally think with the wider cabin of the 737RS, 787-style pivot bins should be used. Pivot bins have the advantage of giving the cabin a more open feel without sacrificing storage space.
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avconsultant
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RE: 737 And 757 Cabins

Thu Nov 09, 2006 9:52 am

Quoting RoseFlyer (Reply 12):
There were scale models of the 757 prototype made with the 727 nose and a t-tail. These are collectors items

I saw pictures of this in Eastern Airline colors
 
GQfluffy
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RE: 737 And 757 Cabins

Thu Nov 09, 2006 10:22 am

Here's an interesting pic...
Big version: Width: 632 Height: 456 File size: 50kb
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N1120A
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RE: 737 And 757 Cabins

Thu Nov 09, 2006 12:02 pm

Quoting Walter747 (Reply 2):
a 757 is a streched version of the 737 and may be a bit wider.

It is exactly the same width but it is a completely different airplane

Quoting LY777 (Reply 4):
Why does the 757 nose is different from the 737?

In order to accomidate the same flight deck as the 767

Quoting Jeffrey1970 (Reply 15):
Actually the 757 is a stretched version of the 727. I know it sounds crazy but it is true.

No, you are completely wrong. The 757 has a completely different design (other than the upper fuselage lobe), a completely different cockpit and avionics, completely different engines, completely different performance characteristics and I can keep going.

Quoting LY777 (Reply 21):
I have the same question.I really do not understand!!!
by the way, this may be ridiculous, but the cabin of the 737 Classics is roomier than the cabin of the 737NGs.I don't understand why!!!

Either because of an optical illusion or airline configuration.
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LY777
Topic Author
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RE: 737 And 757 Cabins

Fri Nov 10, 2006 1:33 am

what about the Tu154 cabin?
How do we feel compared to the A320 and B737?
Is it wider?
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