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Oykie
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Boeing Firms Up 737-8MAX Configuration

Tue Jul 23, 2013 7:07 pm

http://boeing.mediaroom.com/index.php?s=43&item=2746

No surprises here. Prototype is built 2 years from now

The 737 MAX will be 13 percent more fuel-efficient than today's most efficient single-aisle airplanes and 8 percent more fuel-efficient per seat than tomorrow's competition. The configuration includes new LEAP-1B engines from CFM International that are optimized for the 737 MAX, a redesigned tail cone and the Boeing designed Advanced Technology Winglet to reduce fuel use. Other changes incorporated include upgrades to the flight deck displays, an electronic bleed air system and fly-by-wire spoiler flight controls.
Dream no small dream; it lacks magic. Dream large, then go make that dream real - Donald Douglas
 
trex8
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RE: Boeing Firms Up 737-8MAX Configuration

Tue Jul 23, 2013 7:22 pm

What's electronic bleed air ?
 
codc10
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RE: Boeing Firms Up 737-8MAX Configuration

Tue Jul 23, 2013 7:26 pm

Any chance of a redesigned door? The heavy inward-outward swinging door with a manual girt bar and no power assist is nothing short of a throwback to the early Jet Age.
 
ODwyerPW
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RE: Boeing Firms Up 737-8MAX Configuration

Tue Jul 23, 2013 7:56 pm

Hmmm,
Was hoping for information on the bulkhead configuration and final seating counts.
Does anyone know?
learning never stops.
 
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1337Delta764
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RE: Boeing Firms Up 737-8MAX Configuration

Tue Jul 23, 2013 8:02 pm

Quoting CODC10 (Reply 2):
Any chance of a redesigned door? The heavy inward-outward swinging door with a manual girt bar and no power assist is nothing short of a throwback to the early Jet Age.

I agree. Boeing should also offer slide-rafts as an option as well.
 
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Stitch
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RE: Boeing Firms Up 737-8MAX Configuration

Tue Jul 23, 2013 8:38 pm

Good to hear things are moving along.

Quoting ODwyerPW (Reply 5):
Was hoping for information on the bulkhead configuration and final seating counts.
Does anyone know?

I do not believe Boeing has said anything official about that, at least that I can find.

[Edited 2013-07-23 14:38:16]
 
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Stitch
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RE: Boeing Firms Up 737-8MAX Configuration

Tue Jul 23, 2013 8:50 pm

Quoting trex8 (Reply 1):
What's electronic bleed air?

Sounds like electronic control and monitoring of the bleed air system to improve efficiency and reduce maintenance.

Here is the Honeywell data sheet on it.
 
VC10er
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 12:02 am

New nose or windshield please!

Just a 737 question: Why does the 737 have the front step on the vertical stabilizer? I love it, but with such a nice sized vert why does it need the extra bit?
To Most the Sky is The Limit, For me, the Sky is Home.
 
Areopagus
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 12:52 am

Quoting VC10er (Reply 16):
Just a 737 question: Why does the 737 have the front step on the vertical stabilizer? I love it, but with such a nice sized vert why does it need the extra bit?

Because the CFM-56 has more surface area ahead of the CG than the JT-8D did, and that requires more fin area to stabilize.
 
tjh8402
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 2:19 am

Quoting VC10er (Reply 16):

I keep seeing that pop up. I know style is a personal choice, but I don't get the hate for the nose on the 737. I love the look. Yes it's the same as the 707 and 727, but those were good looking planes. While I love the proportions on the 757, I've always thought the nose looked droopy and dopey - a charge I would level against the nose of the A320 as well.
 
Geo772
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 9:14 am

Quoting trex8 (Reply 1):

What's electronic bleed air ?
Quoting Stitch (Reply 6):
Quoting trex8 (Reply 1):
What's electronic bleed air?

Sounds like electronic control and monitoring of the bleed air system to improve efficiency and reduce maintenance.

Here is the Honeywell data sheet on it.

Most bleed air systems are pneumatically regulated at the moment.

The move to an electronic bleed system just allows finer control of the bleed schedule. By taking only what you specifically need off the engines then waste within the system will reduce.
Flown on A300B4/600,A319/20/21,A332/3,A343,B727,B732/3/4/5/6/7/8,B741/2/4,B752/3,B762/3,B772/3,DC10,L1011-200,VC10,MD80,
 
PHX787
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 9:31 am

Quoting trex8 (Reply 1):
What's electronic bleed air ?
Quoting Stitch (Reply 6):
Sounds like electronic control and monitoring of the bleed air system to improve efficiency and reduce maintenance.

Wasn't this using an electronic air pump, like what the 787 does?
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817Dreamliiner
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 10:30 am

Great to see things moving along with the 737 MAX. Hoping they can keep everything on track. Hope the firm configuration for the MAX 9 comes soon.
Life is encrypted, you are modified, Like a virus in a lullaby, Artificial till the day you die, silly programme, You're corrupted
 
r2rho
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 11:43 am

Hmm I was hoping for more detailed infos, but it's just a very generic press release, a pity.

Quoting Stitch (Reply 6):
What's electronic bleed air?

Sounds like electronic control and monitoring of the bleed air system to improve efficiency and reduce maintenance.

Here is the Honeywell data sheet on it.

Agree. Bleed on newer a/c like A380 or A350 is electro-pneumatic, so this is technology trickling down into the MAX.
For comparison, does anyone know if Airbus will stay pneumatic or go electro-pneumatic for the NEO?
 
bohica
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 2:27 pm

Quoting tjh8402 (Reply 9):
I keep seeing that pop up. I know style is a personal choice, but I don't get the hate for the nose on the 737.

Judging from other posts on a.net, I believe pilots don't like it due to the wind noise.
 
aerosol
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 5:49 pm

A steering disengage switch a la embraer or a new location for the steering pin. Furthermore a "slap to close" door for the ground power and headset access.
 
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seabosdca
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 5:52 pm

Quoting bohica (Reply 14):
I believe pilots don't like it due to the wind noise.

I think the cramped quarters is an even bigger reason. The 757 cockpit is far roomier.

I think the 757 nose also looks more modern from the outside, but that ship sailed when WN insisted on a very high level of commonality between the 737 Classic and 737NG. There's no way Boeing would do a new nose for a minimum-change derivative (which, IMO, is also a stopgap product) like the MAX.
 
PlanesNTrains
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 6:09 pm

Quoting r2rho (Reply 13):
Hmm I was hoping for more detailed infos, but it's just a very generic press release, a pity.

What do we not know that you were hoping to hear? I'm just curious, since it seemed like they had mentioned a variety of changes and expectations over time.

-Dave
-Dave


MAX’d out on MAX threads. If you are starting a thread, and it’s about the MAX - stop. There’s already a thread that covers it.
 
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KarelXWB
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 6:19 pm

Quoting PlanesNTrains (Reply 17):
What do we not know that you were hoping to hear? I'm just curious, since it seemed like they had mentioned a variety of changes and expectations over time.

I think he is looking for the technical PDF files.
What we leave behind is not as important as how we've lived.
 
PlanesNTrains
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RE: Boeing Firms Up 737-8MAX Configuration

Wed Jul 24, 2013 6:29 pm

Quoting KarelXWB (Reply 18):
I think he is looking for the technical PDF files.

Would those normally be released at this time? I really don't know. I just wouldn't expect the announcement of firm configuration to include every detail - those things will come in time I'm sure.

-Dave
-Dave


MAX’d out on MAX threads. If you are starting a thread, and it’s about the MAX - stop. There’s already a thread that covers it.

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