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 ?
Split Scimitar Winglets deliver both economic and environmental benefits by reducing the drag created at the end of the wingtip and distributing the lift of the aircraft more evenly across the whole wing.
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 modification took ten days and involved specialists at Lufthansa Technik's VIP & Executive Jet Maintenance product division reinforcing various areas on the inside of the aircraft's structure, particularly in the wing tanks, to install the winglets. They also carried out complex painting tasks.
THE NEW DESIGN IS A REFINEMENT OF THE Blended Winglets developed by Aviation Partners Boeing.
Boeing unveiled a new "advanced technology winglet" design for the 737 MAX yesterday, saying that it will provide up to an additional 1.5% fuel-burn advantage on top of the 10- to 12% improvement already advertised for the re-engined narrow body.
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.
The new low cost airline from Emirates, flydubai has placed orders worth $750 million for engines and winglets on its debut at the Farnborough Air Show.
Summary: flydubai rounded off its first trip to the Farnborough Air Show with a package of orders that shows the airlineCOs commitment to the environment, with orders totalling $750 million US for engines and winglets.
If you choose to use ridiculously inexpensive winglets then you may find yourself munching more than you bargained for, so cook a little extra.
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.