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In 2006 Airbus tested two candidate blended winglets, designed by Winglet Technology and Airbus for the Airbus A320 family. [25] In 2009 Airbus launched its "Sharklet" blended winglet, designed to enhance the payload-range of its A320 family and reduce fuel burn by up to 4% over longer sectors. [26]
This entity licenses the Blended Winglet Technology for use on Boeing aircraft. [3] Starting with the Boeing Business Jet, winglets have been factory installed onto the Boeing 737 Next Generation as well as retrofitted on 737 'Classic' (Boeing 737-300 and -500) and 757 and 767-300ER airliners. [4]
In 2008, Winglet Technology, with the help of Cessna, began flight testing epoxy/graphite elliptical winglets on a Citation X. Flight testing was nearing completion in late 2008, with FAA supplemental type certification expected in 2009.
Current aircraft designs already employ winglets aimed at increasing the cruise flight efficiency by induced drag reduction. Smart intelligent Structures propose a state of the art technology that incorporates a wingtip active trailing edge, which could be a means of reducing winglet and wing loads at key flight conditions.
In 1995, Lacy was one of the first aircraft owners to equip his Gulfstream jets with Blended Winglet™ technology developed by Aviation Partners Inc., founded by Joe Clark and Dennis Washington. That June, in a Gulfstream IISP inscribed with the words “Wings of Change” across its side, Lacy and Clark set world speed records during a flight ...
This was a new aircraft destined for American Airlines and in their livery. With this, the first ecoDemonstrator, Boeing tested laminar flow technology for winglets, improving fuel efficiency by 1.8 percent. This fed directly into the design of the winglets used on the subsequent 737 MAX series. [19] The aircraft tested other technologies ...
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The Spiroid winglet is a closed wing surface attached to the tip of a conventional wing. Wingtip vortices form a major component of wake turbulence and are associated with induced drag, which is a significant contributor to total drag in most regimes. A closed wing avoids the need for wingtips and thus might be expected to reduce wingtip drag ...