What is the minimum visibility requirement for VFR flight in controlled airspace?

For VFR (Visual Flight Rules) flight in controlled airspace, the minimum visibility requirement is indeed three statute miles. This standard is established to ensure that pilots maintain adequate visual references to navigate, avoid obstacles, and follow traffic patterns safely. Three miles of visibility allows pilots to see and avoid other aircraft, as well as to identify and manage any hazards in their approach and landing phases.

In controlled airspace, the requirement for visibility can vary depending on the specific type of airspace (Class B, C, D, or E, for example), but the general rule is aimed at promoting safety through improved situational awareness. Pilots need to be able to see and discern other aircraft and relevant terrain features to operate effectively, which is why three miles is the mandated minimum.