That tip is called a winglet ... aircraft, which allows the newer Boeing 777X to have larger, more fuel-efficient wings in the air, but smaller airport-compatible ones on the ground.

Winglets reduce wingtip vortices, the twin tornados formed by the difference between the pressure on the upper surface of an airplane's wing and that on the lower surface. High pressure on the ...

He and Dennis Washington, the aircraft’s owner, formed Aviation Partners Inc. (API) with the goal of adapting evolving winglet technology to boost the Gulfstream’s numbers. They assembled an ...