These are trails from wingtip vortices which happen when there’s a reduction in pressure and temperature at the tip of a wing causing water to condense, leaving a trail. They are not ‘chemtrails’. A ...

aircraft, part of the Autonomous Formation Flight (AFF) project based at NASA’s Dryden Flight Research Center, Edwards, Calif., flew the mission in early December. During the 96-minute flight, the ...

Recent research demonstrated that, although most wing shapes used today create turbulent wake vortices, wing geometrics can be designed to reduce or eliminate wingtip vortices almost entirely. In the ...

Passengers on the Airbus A380 were convinced they were going to die when it started going down over the Pacific Ocean PASSENGERS have described the terrifying moment a vortex sent their Qantas flight ...