Winglets increase efficiency by reducing lift-induced drag. They do this by relocating and diminishing the vortex at the wing’s tip, resulting in lower fuel burn, higher cruise speed and longer range.
New wingtip technology that “will raise eyebrows” is being developed by Aviation Partners and may be revealed at the EBACE show this week. Declining to reveal details ahead of time, chief executive Joe Clark told EBACE Convention News a few weeks ago that satisfactory completion of flight testing could permit him to announce the novel wingtip devices here in Geneva. The U.S.
BLR Aerospace of Everett, Wash., received an STC for winglets on the King Air 300. According to BLR, winglets increase cruise speed by five to eight knots, reduce fuel consumption by 3.5 percent and increase rate of climb by 300 fpm. Meanwhile, Sierra Industries of Uvalde, Texas, is developing winglets for the Citation 500 and 560 series. The company says winglets will reduce drag, minimize turbulence and counteract wingtip vortices.
- Page 2