blended winglets


A small, nearly vertical, winglike surface usually shaped like the airfoil section attached to the wing tip. The surface may or may not have control surfaces. It is generally located rearward above the wing tip and is effective in reducing the induced drag by reducing the spilling of high-pressure air beneath the wing to a lower pressure above the wing. Two small vortices create less drag than one huge vortex; thus, they create less of a hazard to aircraft following on approach through a less-induced wake turbulence. Winglets are most effective at a low speed or high alpha, where the induced drag is the highest. They may produce a forward component of lift as well as reduce the induced (vortex) drag, thus improving the range of long-range as well as short-range commuter jets. Also called wing-tip winglets, blended-wing tips, blended winglets, tip sails, or wing-tip sails. See also wing-tip sail.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Aviation Partners Boeing (APB) product, a retrofit of the existing Blended Winglets, is the most advanced technology winglet ever produced, offering unprecedented fuel savings and carbon emissions reductions for the world's most popular commercial aircraft.
The Split Scimitar Winglet modification reduces Boeing Next-Generation 737 block fuel consumption by up to an additional 2.2% over Blended Winglets. Annually, Split Scimitar Winglets will save SkyUp Airlines over 225,000 liters of fuel, and a corresponding 568 tonnes of carbon dioxide emissions, per aircraft.
THE NEW DESIGN IS A REFINEMENT OF THE Blended Winglets developed by Aviation Partners Boeing.
The companies created APB initially to equip Boeing Business Jets, a 737 derivative, with Aviation PartnersO unique take on the NASA-proven winglet technology: Blended Winglets. Like other winglet designs, APBOs Blended Winglet reduces drag and takes advantage of the energy from wingtip vortices, actually generating additional forward thrust like a sailboat tacking upwind.
The company currently does not plan to retrofit it on 737NGs equipped with blended winglets from Seattle-based Aviation Partners, said Beverly Wyse, 737 program general manager.
API's Blended Winglets are an addition to the aircraft wing tip which is designed to efficiently add effective wingspan, reduce the drag caused by wingtip vortices to increase fuel efficiency and boost range.
According to Boeing the Next-Generation 737 features the new Boeing Sky Interior, which is based on the 787 Dreamliner;s cabin architecture, plus Blended Winglets, which improve the aircraft's environmental impact.
In a separate deal, flydubai also signed an agreement worth $50 million for blended winglets from Aviation Partners Boeing (APB).
In addition, we will bring the full force of our world-class customer and product support organization to bear to help ensure the airline has a very smooth start-up.C[yen] In a separate deal, flydubai also signed an agreement worth $50million US for blended winglets from Aviation Partners Boeing (APB).
Blended Winglets, a performance-enhancing technology developed by Aviation Partners for the Gulfstream II and BBJ business jets, are changing the way airlines fly in Europe.
The Split Scimitar Winglet modification reduces Boeing Next-Generation 737 block fuel consumption by an additional 2.2% over the Blended Winglets. The Split Scimitar Winglet System will reduce Mango's annual fuel requirements by more than 155,000 liters per aircraft, and their carbon dioxide emissions by over 390 tonnes per aircraft per year.