This is why wings curve up. Did you know this about airplanes?

While cruising at altitude, one of the most noticeable features of a private jet is the curved-up wingtip, known as a winglet. Beyond their aesthetic appeal, winglets serve a critical functional purpose for modern aircraft. By straightening the airflow at the wingtips, these devices effectively reduce the aerodynamic drag acting on the aircraft. This reduction in drag allows the aircraft to operate more efficiently, resulting in a 1 to 2 percent reduction in overall fuel consumption. Over the course of an aircraft's operational lifespan, this slight improvement in efficiency translates into significant cost savings for operators and supports more sustainable flight operations.