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737-800 Winglets  
User currently offlineMuddydawg From Portugal, joined Jan 2003, 56 posts, RR: 0
Posted (13 years 4 months 1 day 14 hours ago) and read 4796 times:

Here maybe an oddball question for you. I have seen some pictures from various people here on A.net of 737-800 without winglets. I was told that all of the -800 have them. I have personally seen -800's with them. What gives??


7 replies: All unread, jump to last
User currently offlineBlatantEcho From United States of America, joined Sep 2000, 2026 posts, RR: 1
Reply 1, posted (13 years 4 months 1 day 14 hours ago) and read 4776 times:

Customer option, nothing more or less.

The wings were strengthened to accept the added weight of the winglets, but it is still a customer choice to equip with or without the winglets.


They're not handing trophies out today
User currently offlineMuddydawg From Portugal, joined Jan 2003, 56 posts, RR: 0
Reply 2, posted (13 years 4 months 1 day 12 hours ago) and read 4684 times:


I guess this is where my ignorance on the subject takes over. I know what they are and what they do. I guess my next question is why wouldn't you want them? Are we in a money issue? I see all the Continental birds don't have them while airlines like SAS have them. Any light on this subject?


User currently offlineIkarus From United Kingdom, joined Jan 2001, 3524 posts, RR: 2
Reply 3, posted (13 years 4 months 1 day 10 hours ago) and read 4608 times:

First of all, originally the 738 wasn't offered with winglets at all. They were only offered 3-4 years ago for the first time. So any 738s manufactured before 1999 couldn't have them anyway, and any after that only if the airline specifically asked for them. New orders signed after 2000 could choose whether they want the option or not, I think. Some charter airlines were very eager (Hapag Lloyd, Air Berlin, South African - OK, not a charter, were among the first with winglets, I believe).

What does the issue boil down to? Initial purchasing costs, partly. But also the average duration of a flight. Winglets are most beneficial in cruise, therefore any flight that doesn't involve lengthy cruising doesn't really need them. Why would Ryanair want winglets on its fleet of 150 738s, for example, when most of their routes are shorter than 2 hours?

Anyway, that is my (hopefully) educated guess...



User currently offline737lame From Norway, joined Apr 2001, 75 posts, RR: 4
Reply 4, posted (13 years 3 months 3 weeks 1 day 13 hours ago) and read 4308 times:

All the -700 and -800 on the market could have the vinglets retrofitted.

Fitting them requires a sheet metal work to the front and rear spar + the outher portion of the wing. This reworking is basically a strenghtening of the wing.

SAS do not have any -800 that have winglets.

To have a benefit of the winglets you must have flights over 3 - 3.5 hours to gain some fuel burn savings. The other fact that winglets do to a -800 wing is that it is stiffer and the aircrafts thend to be more stiffer in the air and not so "flexing".

Even the classic`s can now have the winglets retrofitted. A -300 have been retrofitted at AviationpartnerBoeing in the last months. This aircraft was first registered as LN-NOR, and was chozen to have the first winglets fitted due to the fact that this aircraft had been a part of Boeing`s -300 testbeds and that they had a very big amount of flight data on that specific individual.


User currently offlineMuddydawg From Portugal, joined Jan 2003, 56 posts, RR: 0
Reply 5, posted (13 years 3 months 3 weeks 1 day 13 hours ago) and read 4314 times:

737lame: ummmmm.....errrrr I meant Sobelair. I was just trying to throw out an example.

User currently offlineFlyingbronco05 From United States of America, joined May 2002, 3841 posts, RR: 2
Reply 6, posted (13 years 3 months 3 weeks 18 hours ago) and read 4220 times:

I am suprised this hasn't been deleted yet:

< http://www.airliners.net/discussions/tech_ops/read.main/50568/6/ >
< http://www.airliners.net/discussions/tech_ops/read.main/39554/6/ >
< http://www.airliners.net/discussions/tech_ops/read.main/19132/6/ >
< http://www.airliners.net/discussions/tech_ops/read.main/17258/6/ >
< http://www.airliners.net/discussions/tech_ops/read.main/1045/6/ >

Never Trust Your Fuel Gauge
User currently offlineMuddydawg From Portugal, joined Jan 2003, 56 posts, RR: 0
Reply 7, posted (13 years 3 months 2 weeks 3 days 14 hours ago) and read 4093 times:

If you are refering to posts that were posted in 2002 when I joined in 2003 then I am sorry to disturb you. Have a little respect.

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