blended winglets


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winglets

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.
References in periodicals archive ?
APB estimates that Blended Winglets have saved airlines worldwide 5.
GOL has always been a valued customer of APB and has operated with Blended Winglets on its Boeing Next-Generation 737 airplanes for over a decade," said Christopher Stafford, Aviation Partners Boeing director of sales and marketing.
Ethiopian Maintenance, Repair and Overhaul (MRO) Unit has achieved another milestone with the successful fitting of blended winglets to its Boeing 767-300ER.
API Blended Winglets are in service on more than 5,000 aircraft around the world and, because of their improved aerodynamic efficiency, have saved more than 3 billion gallons of jet fuel.
Blended Winglets provide block fuel savings of up to 5% depending on route and stage length, resulting in fuel savings for typical 737-700/-800 operators of more than 100,000 gal.
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.
In an era of near-record oil prices, Blended Winglets save fuel, improve aircraft operational performance and cut maintenance cost.
API's Blended Winglets are additions to the airplane wing that are significantly more efficient than standard wing tips.
API Blended Winglets are certified and in-service on Dassault's Falcon 2000, 900 & 50 series, the Hawker 800 series and the Gulfstream II aircraft.
Aviation Partners Boeing (APB) today announced Ethiopian Airlines has ordered Blended Winglets for its 767-300ERs.
Joe Clark, founder and CEO of Aviation Partners, said today that "We are certainly surprised by the lawsuit attempting to invalidate our patent on Blended Winglets after working closely with Airbus over the past five years.
Sun Country Airlines announced today that it will retrofit its fleet of 737-800's with blended winglets from Aviation Partners Boeing.