The longer-range twin-engine A330 and four-engine A340 have conventional winglets, as do Boeing 747-400s. Aviation Partners, a Seattle, Washington company, has a new design it calls a "blended ...

Early winglet designs were angular, and could often be seen on older aircraft such as the Boeing 747-400 and all variants of the Airbus A340. They are still present today on the Airbus A330-200 ...