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Old 07-01-2012, 09:12 PM   #13 (permalink)
Vman455
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I noticed Boeing started using winglets in the 90s, like on the redesigned 737s:



(737-800, entered service 1998, according to Wikipedia)

...and the 747-400:



But the 787 eschews them!



...and so does the new 747-8:



And all the press renderings of the upcoming 737 redesign show conventional winglets:



Or what look like a funky version of Airbus's winglets:



What gives? Why do designs from one company use them, then stop using them, then possibly use them again?
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Last edited by Vman455; 07-01-2012 at 09:17 PM..
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