Seattle-based Aviation Partners Inc. (API) announced on Oct. 29 that it recently tested its futuristic-looking split scimitar blended winglet design.
The split scimitar blended winglet is a follow-on design from a previously proven API technological innovation. The split winglet features the addition of a blended ventral fin to the existing blended winglet design, as well as high-performance winglet tips (scimitar tips) designed using advanced computational fluid dynamics (CFD) methodology.
Initial CFD results indicated that the split winglets would produce a cruise performance gain of more than 30–40% compared to the original blended winglet configuration. The proof of concept testing took place earlier this year on aBBJ, and cruise drag results matched API’s CFD predictions.
API has not yet announced plans to make the new design available for any specific aircraft type. A full scale mock-up of the split scimitar winglets was on display at NBAA 2012, along with examples of API’s current blended winglets that are installed on Hawker and Falcon business jet models.