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 ?
5% over the Blended Winglets alone; together they reduce fuel burn by up to 6.
In support of the certification process, Duncan Aviation installed the wing reinforcement on the Sovereign aircraft along with the winglet attach structure and Transitional Winglets and the aircraft was delivered in late May.
THE NEW DESIGN IS A REFINEMENT OF THE Blended Winglets developed by Aviation Partners Boeing.
The damaged winglet was taken off the wing and the aircraft has been operating without it.
The Aviation Partners Boeing (APB) joint venture now supplies blended winglets for 737NGs, 757s and the 767-300ER.
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.
He said offering them as retrofits would depend on whether the airline chose an Aviation Partners blended winglet design or the Airbus-designed sharklet which was air tested on an Airbus aircraft earlier this year The winglets would cut fuel burn by 2% to 4%, depending on the design.
In a separate deal, flydubai also signed an agreement worth $50 million for blended winglets from Aviation Partners Boeing (APB).
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.
In an era of near-record oil prices, Blended Winglets save fuel, improve aircraft operational performance and cut maintenance cost.
Aviation Partners Boeing (APB) has announced that Hainan Airlines has committed to install Split Scimitar Winglets on 36 of its fleet of Boeing Next-Generation 737-800 aircraft, the company said.