Winglets-some big some small?Some none at all

[Garth]

why does the 737-800 have such huge winglets in comparison to other aircraft which are much bigger (say 747) which have small winglets? Why don't all planes have winglets?

[ronnie123]

http://aerodyn.org/Drag/tip_devices.html#winglet


THIS WILL HELP YOU.

[Garth]

many thanks rommie123.....much obliged, very useful info

[Roadtrip]

Not all companies put order them on their airplanes, depending on how they are used in service. In some circumstances, like short haul flights, the weight and maintenance requirements outweight any fuel savings. Also, newer wings like the 777 and 767-400 don't use winglets.

In some cases, it's just a marketing styling.

[Garth]

thankx roadtrip, i must say you taught me something again there too. It does make sense. And they do look beautiful.
Happy flying Roadtrip

[Knold]

I've heard the the winglets on the 737NG is acctually worsening the performance. I.e the weight and the drag of the winglet it self exceedes the good of vortex reduction it offers.

[Garth]

thanks knold Does NG stand for "No Good"? Now i really am confused.

[Knold]

He he, well that was a good sugestion that I'll carry with me but it's actually Next Generation...

[Garth]

Knold, its a continuous learning process.....happy flying

[GlueBall]

Eyecatcher

More to do with styling. Big winglets on 737-800s make a "fashion statement." It's Boeing showbiz.