What does "VFR" stand for?

"VFR" stands for "Visual Flight Rules." This term refers to a set of regulations under which a pilot operates an aircraft in weather conditions generally clear enough to allow the pilot to see where the aircraft is going. Under VFR, pilots are responsible for maintaining visual separation from other aircraft and obstacles, navigating by visual references, and ensuring they have adequate visibility.

Understanding VFR is essential for pilots, especially when flying in good weather conditions, as it allows for greater flexibility and operational decision-making. Unlike instrument flight rules (IFR), which are used when weather conditions are not ideal for visual navigation, VFR assumes that pilots can see and avoid obstacles and other traffic.

The other options provided do not accurately capture the meaning of VFR in the context of aviation regulations and practices.