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The fence/winglet drives the area where the vortex forms upward away from the wing surface, since the center of the resulting vortex is now at the tip of the winglet. [citation needed] The fuel economy improvement from winglets increases with the mission length. [14] Blended winglets allow a steeper angle of attack reducing takeoff distance. [15]
They started setting a number of World Records in performance with the winglets. [2] In 1997, API's winglets were sold as a standard fit on all Boeing Business Jets, and winglets were offered as an addition to standard 737s. Around 95% of all 737 customers want winglets fitted. [2] An API blended winglet on a Boeing 737-800
[87] [88] Continental Airlines was the first carrier to order winglets for the 757-200, and in February 2009 became the first operator of 757-300s with winglets. [89] Aviation Partners further developed the blended winglet into the Scimitar Blended Winglet, which improves fuel burn by 1.1% over the original blended winglet. [90]
Split Scimitar winglets became available in 2014 for the 737-800, 737-900ER, BBJ2 and BBJ3, and in 2015 for the 737-700, 737-900 and BBJ1. [138] Split Scimitar winglets were developed by Aviation Partners , the same Seattle-based corporation that developed the blended winglets; the Split Scimitar winglets produce up to a 5.5% fuel savings per ...
Split Scimitar winglets were developed by Aviation Partners, the same Seattle-based corporation that developed the blended winglets; the Split Scimitar winglets produce up to a 5.5% fuel savings per aircraft compared to 3.3% savings for the blended winglets. Southwest Airlines flew their first flight of a 737-800 with Split Scimitar winglets on ...
The Masak winglets were originally retrofit to production sailplanes, but within 10 years of their introduction, most high-performance gliders were equipped from the factory with winglets. [6] It took over a decade for winglets to first appear on a production airliner, the original application that was the focus of the NASA development in the ...
The Scimitar was used by the three formation reconnaissance regiments of the British Army. After the Strategic Defence and Security Review in 2010, some regiments' Challenger 2 tanks were replaced with CVR(T) Scimitars. [22] The Scimitar was retired from active service in April 2023. [2] Belgium – 153 units, [23] withdrawn from active service ...
The Spiroid winglet is a closed wing surface attached to the tip of a conventional wing. Wingtip vortices form a major component of wake turbulence and are associated with induced drag, which is a significant contributor to total drag in most regimes. A closed wing avoids the need for wingtips and thus might be expected to reduce wingtip drag ...