What is the maximum visibility limitation for VFR operation?

For VFR (Visual Flight Rules) operation, the maximum visibility limitation is indeed 10 kilometers. This standard is essential for pilots to maintain visual reference with the ground and other aircraft, ensuring safe navigation under VFR conditions. When visibility is at or above this limit, pilots can fly visually, which allows for easier navigation and situational awareness.

Each country's aviation regulations may have specific visibility limits; however, 10 kilometers is a widely recognized benchmark in many jurisdictions. This visibility requirement helps pilots to avoid hazardous weather conditions and allows for safe maneuvering around other aircraft, terrain, and obstacles.

In contrast, the other options represent visibility limitations that would typically correspond to different operating conditions, such as those defined for special VFR operations or IFR (Instrument Flight Rules) conditions, which are not suitable for standard VFR operations. Thus, they do not meet the criteria established for VFR flight safety.