>> Download free Wake Turbulence
>> Download free Wake Turbulence Advisory Circular (FAA)
All aircraft produce wake turbulence, which consists of wake vortices formed any time an aerofoil is producing lift. Lift is generated by the creation of a pressure differential over the wing surfaces as the aircraft moves forward. The lowest pressure occurs over the upper surface and the highest pressure under the wing.
Air will always want to move towards the area of lower pressure. This causes it to move outwards under the wing and curl up and over the upper surface of the wing. This starts the wake vortex. The same pressure differential also causes air to move inwards over the wing. Small trailing edge vortices, formed by outward
and inward moving streams of air meeting at the trailing edge, move outwards to the wingtip and join the large wingtip vortex.
Swirling air masses trail downstream of the wing tips. Viewed from behind, the left vortex rotates clockwise and the right vortex rotates counter-clockwise. They spread laterally away from the aircraft.
>> Download free Wake Turbulence
>> Download free Wake Turbulence Advisory Circular (FAA)
