How long can wake turbulence persist after an aircraft has passed?

Prepare for the New Zealand CPL Meteorology Exam. Study with flashcards and multiple choice questions, each question offers hints and explanations. Ace your exam!

Wake turbulence can indeed persist for a significant amount of time after an aircraft has passed, with many studies and guidelines indicating that it can remain for up to 6 minutes. The phenomenon occurs due to the rotating air masses generated by an aircraft's wings as it flies, notably from the wingtip vortices, which can be particularly strong for larger, heavier aircraft.

The duration for which this turbulence exists is influenced by several factors including atmospheric conditions, wind, and temperature stratification. In still air, the effects of wake turbulence can last around 6 minutes, which is why pilots are advised to maintain a safe distance and follow guidelines regarding spacing during takeoff and landing to avoid encountering it.

This timeframe emphasizes the importance of awareness and caution in the vicinity of airports, especially when following larger aircraft. Understanding these dynamics helps ensure the safety of all aircraft operations in busy airspace.

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