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

For VFR (Visual Flight Rules) flight in controlled airspace, the minimum visibility requirement is 3 statute miles. This standard is in place to ensure that pilots can maintain visual reference to the ground and other aircraft, enabling safe navigation and collision avoidance.

In controlled airspaces, which include Class B, Class C, and Class D airspace, having at least 3 statute miles of visibility significantly reduces the risk of flying into adverse weather conditions or other aircraft. This regulation helps maintain safe and orderly operations within these airspaces, as pilots rely on visual cues for separation from terrain and other traffic.

Other visibility thresholds, such as 1 or 2 statute miles, do not meet the regulatory requirements for VFR operations in controlled airspace, as they may not provide adequate situational awareness needed for safe flight. Hence, 3 statute miles is the correct answer that aligns with regulatory standards for VFR operations in controlled airspace.