What should you be aware of when landing on a crossing runway behind a departing large airplane?

When landing on a crossing runway behind a departing large airplane, it is crucial to understand how wake turbulence operates. When a large aircraft takes off, it generates wake vortices, which are strong spirals of air that descend behind the aircraft. These vortices are most potent during takeoff and landing phases and can persist in the air for some time.

The correct understanding is that vortices can indeed be generated before the intersection where you are landing. This means that even if you do not see the large aircraft actively crossing your path at the exact moment of your landing, the vortices created will still be in the vicinity, potentially affecting your aircraft's stability and control. Therefore, it is essential to consider these vortices when planning your landing approach, while also adhering to safe separation practices to avoid potential hazards.

Awareness of this fact allows pilots to make informed decisions regarding spacing, approach angles, and stability management during landing in the presence of large aircraft operations.