blended winglets

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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 ?
The wingtip devices will also enhance the aircraft's performance.
Airbus, an aircraft manufacturer, yesterday announced that Air Arabia, a low-cost Middle East and North Africa carrier, has selected Sharklets wingtip devices for 28 out of 44 A320 aircraft it has ordered.
To stay competitive in the market, Airbus is upgrading its A320 by adding sharklets - wingtip devices designed to improve fuel efficiency of the aircraft - beginning in 2012.
The A320neo is an improved version of the existing Airbus A320 Family, which incorporates new, more-efficient engines and large "Sharklet" wingtip devices, together delivering approximately 15 percent in fuel savings, among other benefits.
In 2013 the airline took deliverey of its first Airbus A320 family aircraft with sharklets, wingtip devices with the potential to help the airline realize to 4% additional fuel efficiency across the network.
All of Delta s A321s will feature fuel-saving Sharklets lightweight composite wingtip devices that offer 4 percent fuel-burn savings.
The combined effect of these cunning little wingtip devices and the improved efficiency engines is to reduce fuel consumption by 15%.
All of the aircraft will feature large, fuel-saving wingtip devices known as Sharklets.
The A320s will feature fuel-saving large wingtip devices called Sharklets.
The daily, nonstop flights will be operated with new Airbus A320 aircraft that Virgin America will take delivery of this year, which will be equipped with fuel-saving, 'sharklet' wingtip devices, allowing the airline to operate flights more efficiently, especially over longer haul routes.
All 260 aircraft will also feature large, fuel-saving wingtip devices known as sharklets, as American moves to make its fleet as efficient as possible.
According to Aviation Partners Boeing, the wingtip devices are ideal for addressing the challenging operating conditions in Southeast Asia because they provide takeoff weight capability improvements of up to 6 tonnes from high altitude, hot and obstacle-limited airports while significantly reducing fuel and engine maintenance costs on normal operations.