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United's 777s Getting Boeing Performance Improvement Package

United's 777s Getting Boeing Performance Improvement Package

 
Old Mar 22, 11, 11:15 pm
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United's 777s Getting Boeing Performance Improvement Package

It looks like United will update its PMUA 777s with the Perfomance Improvement Package to help reduce fuel consumption. The PMCO 777s had the improvements installed beginning in 2007.

Didn't see a thread on it currently, but I could have missed one, so sorry if this has already been posted.

From Boeing's press release:

http://boeing.mediaroom.com/index.php?s=43&item=1678

SEATTLE, March 22, 2011 /PRNewswire/ -- Boeing (NYSE: BA) and United Continental Holdings, Inc. announced today that United Airlines' 777 fleet will be modified with a Performance Improvement Package that will result in greater fuel efficiency, along with reduced emissions.

The package, to be installed on 52 United Airlines 777s, is expected to reduce fuel spending per airplane by about $200,000 annually (assuming $100 per barrel crude oil prices), according to Boeing estimates.

"We appreciate Boeing's continued efforts to make existing aircraft more fuel efficient," added United Fleet Vice President Ron Baur. "We are very focused on improving fuel efficiency in our fleet as a natural hedge against rising fuel prices."

Continental Airlines, which merged with United Airlines last year, was among the first airlines to sign up for the package, agreeing to outfit 20 777s in 2007.

"Expanding implementation to the United Airlines 777 fleet is a great testament to the value of the Performance Improvement Package," said Dennis Floyd, vice president, Fleet Services for Boeing Commercial Airplanes. "These efficiency upgrades help our customers by making a great airplane perform even better."

The 777 Performance Improvement Package improves the airplane's aerodynamics through a software change to enable a drooped aileron, a ram air system improvement and the installation of improved wing vortex generators.
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Old Mar 22, 11, 11:57 pm
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Glad to hear ^ After listening to Jeff's keynote presentation today, I'm not surprised that the PMUA 777s will get this package.. Any chance they would also get winglets?
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Old Mar 23, 11, 12:07 am
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Out of curiosity, how long will an aircraft be out of service for this installation? There's already a lot of unpredictable shuffles due to 777 upgrades and repainting.
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Old Mar 23, 11, 1:36 am
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Originally Posted by SFOSpiff View Post
Out of curiosity, how long will an aircraft be out of service for this installation? There's already a lot of unpredictable shuffles due to 777 upgrades and repainting.
What 777 upgrades? That seems to be stopped dead in its tracks.
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Old Mar 23, 11, 1:38 am
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Originally Posted by RichardInSF View Post
What 777 upgrades? That seems to be stopped dead in its tracks.


N209UA went in for interior upgrades on 3/10.

http://www.flyertalk.com/forum/unite...-2011-a-4.html
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Old Mar 23, 11, 7:13 am
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How much does the package cost per aircraft? Since CO has had a few years of real data with the upgrades, it's presumably worth doing given the remaining time of the 777 in the fleet.
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Old Mar 23, 11, 7:23 am
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Originally Posted by FriendlySkies View Post
Any chance they would also get winglets?
My understanding is that the blended wing design of the 777 precludes then need for wing glitz to be installed.
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Old Mar 23, 11, 8:31 am
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Originally Posted by sbm12 View Post
My understanding is that the blended wing design of the 777 precludes then need for wing glitz to be installed.
Did the early 772s come with raked wingtips?

Here's a pic of a UAL 772, which I don't believe has raked winglets:

http://www.airliners.net/photo/0964880/

here's one with for comparison:

http://www.flickr.com/photos/caribb/468435025/

Last edited by IADtoWhere; Mar 23, 11 at 8:46 am Reason: added photos
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Old Mar 23, 11, 8:56 am
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Originally Posted by IADtoWhere View Post
Did the early 772s come with raked wingtips?

Here's a pic of a UAL 772, which I don't believe has raked winglets:

http://www.airliners.net/photo/0964880/

here's one with for comparison:

http://www.flickr.com/photos/caribb/468435025/
I remember when Boeing first announced the 777 that it was being offered with two wing types, including an extra long wing that actually folded up a third the way down from the tip like older Navy fighters vs their AF counterparts. Never realized in the final versions of the 777 though. UA must have received some of the original variants as I recall flying them back in the early/mid 90s.
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Old Mar 23, 11, 11:13 am
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What is the cost of this modification: At $200K savings p,a., what is the ROI, assuming $ 100 p.b. oil?
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Old Mar 23, 11, 10:12 pm
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Originally Posted by sbm12 View Post
AMAZING!!!!
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Old Mar 23, 11, 10:53 pm
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Originally Posted by SFOSpiff View Post
Out of curiosity, how long will an aircraft be out of service for this installation? There's already a lot of unpredictable shuffles due to 777 upgrades and repainting.
http://www.boeing.com/commercial/aer...icle_02_1.html

Drooped aileron is software only - 3 hours.

Vortex generators - overnight.

Ram air - several days, so should be done with heavy maintenance.

Can be ordered and done all separately, with 60% of the benefits achieved with just the first two. Amazing that UA hasn't even done those two already.
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Old Mar 23, 11, 11:34 pm
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Originally Posted by FriendlySkies View Post


N209UA went in for interior upgrades on 3/10.

http://www.flyertalk.com/forum/unite...-2011-a-4.html
Yeah, they started one in March. The target is 16 this year, fabulous start.
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Old Mar 24, 11, 3:05 am
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Originally Posted by IADtoWhere View Post
Did the early 772s come with raked wingtips?

Here's a pic of a UAL 772, which I don't believe has raked winglets:

http://www.airliners.net/photo/0964880/

here's one with for comparison:

http://www.flickr.com/photos/caribb/468435025/
The 777-200 and 777-200ER doesn't have that wing tip option only the 777-200LR and the 777-300W
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Old Mar 24, 11, 8:54 pm
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Originally Posted by rkkwan View Post
http://www.boeing.com/commercial/aer...icle_02_1.html

Drooped aileron is software only - 3 hours.

Vortex generators - overnight.

Ram air - several days, so should be done with heavy maintenance.

Can be ordered and done all separately, with 60% of the benefits achieved with just the first two. Amazing that UA hasn't even done those two already.
Hmm... that link has some interesting information. I find the drooped aileron to be a particularly odd way to increase efficiency, but then again, I know nothing about aeronautical engineering.
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