When is it advisable to avoid flying near an aircraft that has just taken off?

Avoiding flying near an aircraft that has just taken off is particularly important immediately after rotation and until the nose wheel settles. During this critical phase of flight, the aircraft is transitioning from the ground to flight and is still gaining altitude and speed. This is when the aircraft is most vulnerable, and it may not have established a stable flight path. The aerodynamic characteristics can be unpredictable, and the pilot may be focused on controlling the aircraft's climb and avoiding obstacles.

Being near an aircraft in this phase increases risks associated with wake turbulence, which can significantly affect smaller aircraft or those operating in close proximity to the larger one. Consequently, maintaining a safe distance during this time enhances safety for all aircraft involved.

In contrast, during cruising altitude or at any other point in flight, the risks associated with proximity are generally lower, as aircraft are typically operating under more stable conditions. While it is still prudent to maintain distance from any aircraft at all stages of flight, the immediate post-takeoff phase is particularly critical.