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Why No Winglets For The 737-400?  
User currently offline1337Delta764 From United States of America, joined Oct 2005, 6536 posts, RR: 2
Posted (6 years 10 months 2 weeks 3 days 22 hours ago) and read 5116 times:

I have been wondering why Aviation Partners currently does not have any plans for winglets on the 737-400. They have already developed winglets for the 737-300, 737-700, and 737-800, with winglets for the 737-500 and 737-900 in the works. Why not the 737-400 though? The 737-400, while not very popular in the United States, was fairly popular outside the U.S., and in fact has sold in greater numbers than the 737-500 did globally. I don't see why they would choose to offer winglets for the 737-500 but not the 737-400, if more 737-400s have been produced. I could see why they wouldn't develop winglets for the 737-100, -200, and -600, as most airlines are retiring their 737-100s/200s, and the 737-600 was and still is a poor seller to begin with, and is not worth developing winglets for a small number of aircraft.


The Pink Delta 767-400ER - The most beautiful aircraft in the sky
14 replies: All unread, jump to last
 
User currently offlineFlyTUITravel From United Kingdom, joined May 2007, 723 posts, RR: 0
Reply 1, posted (6 years 10 months 2 weeks 3 days 21 hours ago) and read 5085 times:

I'm pretty sure winglets are certified for the 734, but no airlines have chosen to fit their a/c with the winglets.

User currently offline1337Delta764 From United States of America, joined Oct 2005, 6536 posts, RR: 2
Reply 2, posted (6 years 10 months 2 weeks 3 days 21 hours ago) and read 5078 times:

Quoting FlyTUITravel (Reply 1):
I'm pretty sure winglets are certified for the 734, but no airlines have chosen to fit their a/c with the winglets.

They should be indeed, as the 737-300, 737-400, and 737-500 all share the same wing. However, getting certification for them is much more complicated than just getting them to fit onto the wing.



The Pink Delta 767-400ER - The most beautiful aircraft in the sky
User currently offlineFuturecaptain From , joined Dec 1969, posts, RR:
Reply 3, posted (6 years 10 months 2 weeks 3 days 21 hours ago) and read 5038 times:

edited for me not checking my facts first.  Smile

[Edited 2007-11-09 13:31:39]

User currently offlineUnited_Fan From United States of America, joined Nov 2000, 7496 posts, RR: 7
Reply 4, posted (6 years 10 months 2 weeks 3 days 21 hours ago) and read 5018 times:

Quoting Futurecaptain (Reply 3):
The two biggest operators of the 737-400 were US Airways and Alaska Airlines.

And with US eventually going A319/20/21 , I wouldn't look for them to invest in winglets.Not sure on AS,but they already have 737NG's with winglets.



'Empathy was yesterday...Today, you're wasting my Mother-F'ing time' - Heat.
User currently offlineFlyorski From United States of America, joined Dec 2004, 987 posts, RR: 1
Reply 5, posted (6 years 10 months 2 weeks 3 days 21 hours ago) and read 4997 times:

Does KLM plan to put winglets on their 737 fleet?


"None are more hopelessly enslaved, than those who falsly believe they are free" -Goethe
User currently offlinePHLBOS From United States of America, joined Mar 2004, 7521 posts, RR: 23
Reply 6, posted (6 years 10 months 2 weeks 3 days 21 hours ago) and read 4974 times:

Quoting Futurecaptain (Reply 3):
Quoting 1337Delta764 (Thread starter):
The 737-400, while not very popular in the United States,

The two biggest operators of the 737-400 were US Airways and Alaska Airlines.

Correction: The two biggest operators (in the US) of the 737-400 are US Airways and Alaska Airlines



"TransEastern! You'll feel like you've never left the ground because we treat you like dirt!" SNL Parady ad circa 1981
User currently offlinePetertenthije From Netherlands, joined Jul 2001, 3369 posts, RR: 11
Reply 7, posted (6 years 10 months 2 weeks 3 days 21 hours ago) and read 4962 times:

Quoting Flyorski (Reply 5):
Does KLM plan to put winglets on their 737 fleet?

Only on the 800 and 900s. The 300s and 400s won't be around long enough to warrant the investment. Conversions should be completed after the winter season.



Attamottamotta!
User currently offlineFlyboyOz From Australia, joined Nov 2000, 1986 posts, RR: 25
Reply 8, posted (6 years 10 months 2 weeks 3 days 21 hours ago) and read 4936 times:

Ah...i was wondering whether they have to remove the lights (red and green lights that are placed at the end side of the wings)...Do they have to remove the lights and the installed the winglets?


The Spirit of AustraliAN - Longreach
User currently offlineAirframeAS From United States of America, joined Feb 2004, 14150 posts, RR: 24
Reply 9, posted (6 years 10 months 2 weeks 3 days 19 hours ago) and read 4846 times:

Quoting 1337Delta764 (Thread starter):
...with winglets for the 737-500 and 737-900 in the works.

The (new) 739ER has winglets and is being offered by Boeing as standard. The original 739 is no longer is production as I have just stated, the ER version is now being offered instead.



A Safe Flight Begins With Quality Maintenance On The Ground.
User currently offlineDa man From United States of America, joined Sep 2001, 887 posts, RR: 12
Reply 10, posted (6 years 10 months 2 weeks 3 days 18 hours ago) and read 4769 times:

Quoting 1337Delta764 (Thread starter):
with winglets for the 737-500 and 737-900 in the works.

There are at least 2 735s flying for CO with winglets.



War Eagle!
User currently offlineYyz717 From Canada, joined Sep 2001, 16281 posts, RR: 56
Reply 11, posted (6 years 10 months 2 weeks 3 days 13 hours ago) and read 4569 times:

Likely a sponsor carrier is needed; i.e. a (sizeable) 734 operator willing to share in the development/cert costs.


Panam, TWA, Ansett, Eastern.......AC next? Might be good for Canada.
User currently offlineTdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 79
Reply 12, posted (6 years 10 months 2 weeks 3 days 12 hours ago) and read 4545 times:

Quoting FlyboyOz (Reply 8):
i was wondering whether they have to remove the lights (red and green lights that are placed at the end side of the wings)...Do they have to remove the lights and the installed the winglets?

The winglets have lights in them. They replaces the existing lights in the wingtip.

Quoting 1337Delta764 (Thread starter):
I have been wondering why Aviation Partners currently does not have any plans for winglets on the 737-400.

The 737-400 may not have enough margin left in the wing. They are available for the 737-300 and -500, which are both less highly loaded than the -400.

Tom.


User currently offlineMSYPI7185 From United States of America, joined Oct 2007, 710 posts, RR: 0
Reply 13, posted (6 years 10 months 2 weeks 3 days 9 hours ago) and read 4479 times:

Maybe I am wrong, but I believe I read somewhere that the 734 did not achieve enough improvement in fuel consumption to warrant the expense to convert these aircraft.

User currently offlinePADSpot From Germany, joined Jan 2005, 1676 posts, RR: 5
Reply 14, posted (6 years 10 months 2 weeks 3 days 9 hours ago) and read 4453 times:

Quoting PHLBOS (Reply 6):
The two biggest operators (in the US) of the 737-400 are US Airways and Alaska Airlines

That statement may be globally valid. I don't know any airline who flies more than 40 respectively 47 B734s.


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