Definition

Wake vortex encounter (WVE) is often recognised as a safety issue for aircraft on initial climb and final approach. However, wake turbulence can also be encountered en route, where the risk of injury to occupants will be increased since seat belt signs will often be off and/or cabin service in progress. This article discusses the safety issues related to en-route wake vortex hazard.

What is Wake Vortex?

Potentially hazardous turbulence in the wake of an aircraft in flight is principally caused by wing tip vortices. This type of turbulence is significant because wing tip vortices decay quite slowly and can produce a significant rotational influence on an aircraft encountering them for several minutes after they have been generated.