trijetfan1
Posts: 1098
Joined: Sun Feb 01, 2004 5:29 am

Difference Between 738 And 739

Sun Nov 14, 2004 12:15 pm

Hi all, I noticed that the -900 series ir only a couple feet larger than the -800. I was wondering whats the difference between the two.
Earned PPL June 26, 2007
 
DfwRevolution
Posts: 8652
Joined: Sat Jan 09, 2010 7:31 pm

RE: Difference Between 738 And 739

Sun Nov 14, 2004 12:22 pm

Well.. the 737-900 is a couple of feet longer than the -800  Big grin

The 739 seats 177 in 2-class configuration compared to 162 for a 738. However, the 739 has the same emergency exits as the 738 so they both seat 189 in single-class configuration. Boeing has a possible 737-900X in the future that adds an emergency exit door and additional fuel tanks that would allow it to roughly match the A321.
 
trijetfan1
Posts: 1098
Joined: Sun Feb 01, 2004 5:29 am

RE: Difference Between 738 And 739

Sun Nov 14, 2004 12:27 pm

Well.. the 737-900 is a couple of feet longer than the -800

I knew this, I said this because I was wondering what was the other differences between the two, I made the obvious connection that a manufactor wouldnt make two planes with the only difference being a couple feet.
Earned PPL June 26, 2007
 
DfwRevolution
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Joined: Sat Jan 09, 2010 7:31 pm

RE: Difference Between 738 And 739

Sun Nov 14, 2004 12:40 pm

I made the obvious connection that a manufactor wouldnt make two planes with the only difference being a couple feet

Well they do. The only physical difference between the 738 and 739 is a few seat rows. And the fact that the 739 can't have winglets for some reason...

The 739 is flown by AS, KL, CO, and others along side the 738 in some cases. The 739 allows a few extra seat rows, which means more revenue as its opperating cost are somewhat close to the 738. Just think of the 739 as the A321 missing an emergency exit row.
 
garuda
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RE: Difference Between 738 And 739

Sun Nov 14, 2004 12:43 pm

Anybody can explain why B739 can't have winglets? is it because of weight issues?
 
sllevin
Posts: 3312
Joined: Wed Jan 30, 2002 1:57 pm

RE: Difference Between 738 And 739

Sun Nov 14, 2004 12:59 pm

As someone else mentioned, there's no increase in pax capacity between a -800 and a -900 (and it's something like 12 feet longer, I think). However, in a two class configuration, there's a seating difference (CO, for example, seats 155 in a -800 and 167 in a -900).

Steve
 
gigneil
Posts: 14133
Joined: Fri Nov 08, 2002 10:25 am

RE: Difference Between 738 And 739

Sun Nov 14, 2004 1:23 pm

The wings are already near enough to their structural load with the extra weight of the fuselage that winglets are an iffy subject for certification.

The -900X, if it flies, will have fortified wings for the winglets.

N
 
N1120A
Posts: 26468
Joined: Sun Dec 14, 2003 5:40 pm

RE: Difference Between 738 And 739

Sun Nov 14, 2004 1:29 pm

According to Boeing, the 739 can take winglets, just no one has ordered them yet, and given that they would probably have to share in the development cost, they probably wont.
The only reason the 739 does not hold more PAX at max capacity is because Boeing did not see the market being there to design another full door (which is what would probably be needed) into the plane. All the potential customers for the specific model were going to have an F cabin anyway, or would fly with no more than 189 pax. The 739X would have the door added. Remember, the 757 has 3 full doors plus overwing exits.
Mangeons les French fries, mais surtout pratiquons avec fierte le French kiss
 
flyabunch
Posts: 444
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RE: Difference Between 738 And 739

Sun Nov 14, 2004 1:30 pm

At least on the Continental 739's they all have a mid-cabin lavatory while in the 738's some have it and some don't. It may be helpful to the flight attendants to have these lavs (improves service by keeping people in the front of coach from having to go all the way to the back for a lav while the FA's are in the aisle with carts), but they are not fun to sit near.

Mike
 
aa757first
Posts: 3140
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RE: Difference Between 738 And 739

Sun Nov 14, 2004 1:32 pm

Could a B739 have a tailcone exit?

AAndrew
 
DfwRevolution
Posts: 8652
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RE: Difference Between 738 And 739

Sun Nov 14, 2004 1:49 pm

Could a B739 have a tailcone exit?

No the APU is in the way. However, the rumored 737-900X would have a composite-built pressure bulkhead that would be flat rather than domed as is convention. This would allow 2 more seat-rows (one being an exit row as well) without physically stretching the aircraft further. The new exit door would be located halfway between the overwing exits and the rear service doors.
 
EddieDude
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RE: Difference Between 738 And 739

Mon Nov 15, 2004 12:13 am

Does anybody know if there is any timeframe for Boeing's official announcement of the 739X?
Next flights: MEX-LAX AM 738, LAX-PVG DL 77L, SHA-PEK CA 789, PEK-PVG CA A332, PVG-ORD MU 77W, ORD-MEX AM 738
 
whitehatter
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Joined: Sat Jun 12, 2004 6:52 am

RE: Difference Between 738 And 739

Mon Nov 15, 2004 12:21 am

However, the rumored 737-900X would have a composite-built pressure bulkhead that would be flat rather than domed as is convention.

That's interesting.

The benefits would be obvious in that there would be a gain of some wasted space, and cabin furnishings could be relocated right up to the bulkhead. I would think that it would also take some heavy testing to ensure the FAA were happy with it. Rear bulkheads are a bit of a sensitive area after the related accidents, and a flat one would need to be able to withstand tailstrikes every bit as much as a dome or even more so.
Lead me not into temptation, I can find my own way there...
 
DfwRevolution
Posts: 8652
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RE: Difference Between 738 And 739

Mon Nov 15, 2004 1:01 am

Does anybody know if there is any timeframe for Boeing's official announcement of the 739X?

The total program would take close to a year, but Boeing needs 35-40 firm orders before starting. VirginBlue was interested (might still be) but they did not place enough frames to launch the program and no other airlines would fill the other slots.

When the U.S. domestic market rebounds (if ever) we could the carreirs with 738 adding some 739X.

The benefits would be obvious in that there would be a gain of some wasted space, and cabin furnishings could be relocated right up to the bulkhead. I would think that it would also take some heavy testing to ensure the FAA were happy with it.

The flat bulkhead will also be used in the 7E7 from what I take...
 
EddieDude
Posts: 6303
Joined: Fri Nov 14, 2003 10:19 am

RE: Difference Between 738 And 739

Mon Nov 15, 2004 1:12 am

Thanks for the info DfwRevolution. I did not know about Virgin Blue, but I had read here several times that AM was interested in being the launch customer. I just don't know if AM and Virgin Blue need, in the aggregate, 40 planes (I am sure AM does not need more than 10).
Next flights: MEX-LAX AM 738, LAX-PVG DL 77L, SHA-PEK CA 789, PEK-PVG CA A332, PVG-ORD MU 77W, ORD-MEX AM 738

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