TwoLz2Rn From United States of America, joined Oct 2005, 429 posts, RR: 0 Posted (6 years 12 months 2 days 15 hours ago) and read 1925 times:
How long does it usually take to put winglets on an aircraft? How much extra range does it add? If the airlines get winglets have they also had them ETOPS certified? Lastly, which US airlines have not put winglets on thier aircraft?
777STL From United States of America, joined Dec 2004, 3033 posts, RR: 3 Reply 1, posted (6 years 12 months 2 days 15 hours ago) and read 1912 times:
For the 757, it takes quite a while, ~21 days for AA on their recent modifications. Reason being, the 757 takes quite a bit of modification to the wings to accomodate the winglets, more so than an aircraft like the 737NG that was specifically designed for them.
AFAIK, AA and CO are the only US operators utilizing winglets. NW, US, UA, DL don't.
KC135TopBoom From United States of America, joined Jan 2005, 11708 posts, RR: 52 Reply 2, posted (6 years 12 months 2 days 15 hours ago) and read 1906 times:
The winglets on the B-757 or B-737 reduce drag by about 7%.
Quoting TwoLz2Rn (Thread starter): If the airlines get winglets have they also had them ETOPS certified?
EMBQA From United States of America, joined Oct 2003, 9286 posts, RR: 13 Reply 3, posted (6 years 12 months 2 days 13 hours ago) and read 1815 times:
Quoting KC135TopBoom (Reply 2): Winglets would not effect ETOPS certification.
Correct. 80% of ETOPS is manuals and procedures... only 20% has to do with the actual aircraft and even then it's mostly items the normal passenger would never see.
"It's not the size of the dog in the fight, but the size of the fight in the dog"
JRadier From Netherlands, joined Sep 2004, 4598 posts, RR: 51 Reply 4, posted (6 years 12 months 2 days 13 hours ago) and read 1790 times:
Quoting 777STL (Reply 1): more so than an aircraft like the 737NG that was specifically designed for them.
Not completely correct. Allthough all 737NG's (I believe, can someone confirm for -600 and -900 (non-ER) are built with winglet provisions, the first hundred-something (someone got the complete number) NG's we're build without it, and the wingletmodifications on that bird require quite some wing modification. On the newer aircraft it's basically snap-on.
For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and ther
B6JFKH81 From United States of America, joined Mar 2006, 2767 posts, RR: 7 Reply 5, posted (6 years 12 months 2 days 12 hours ago) and read 1742 times:
Quoting 777STL (Reply 1): ~21 days for AA on their recent modifications
I wish AA would PAINT the winglets. I was watching the AA 757 with the winglets come in the other day here at JFK, and it is this dull grey color just like the tail. I think they would look great if they were red or blue or had the AA red and blue stripe or something!
Seeing CO's 757 with the winglets, the blue looks really nice.
"If you do not learn from history, you are doomed to repeat it"
777STL From United States of America, joined Dec 2004, 3033 posts, RR: 3 Reply 6, posted (6 years 12 months 2 days 6 hours ago) and read 1592 times:
Quoting JRadier (Reply 4): Not completely correct. Allthough all 737NG's (I believe, can someone confirm for -600 and -900 (non-ER) are built with winglet provisions, the first hundred-something (someone got the complete number) NG's we're build without it, and the wingletmodifications on that bird require quite some wing modification. On the newer aircraft it's basically snap-on.
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