Definition
An air traffic control authorization that permits a pilot to operate under visual flight rules within Class B, C, D, or E surface area airspace when the prevailing weather is below the basic VFR minimums. Special VFR requires a specific clearance from ATC, at least 1 statute mile flight visibility, the ability to remain clear of clouds, and (for fixed-wing aircraft) is generally restricted to daytime unless both pilot and aircraft are instrument-qualified.
Plain English
A special permission from air traffic control that lets a pilot fly into or out of certain controlled airports by visual reference, even when the weather is a bit too poor for normal visual flying. The pilot must stay clear of clouds and have at least one mile of visibility.
Context Anchor
Seen in weather, airspace, and clearance discussions, especially when a pilot wants to depart from or arrive at an airport in controlled airspace during marginal weather.
Derivation
Special comes from a Latin word meaning “particular” or “specific.” Visual comes from a Latin word meaning “to see.” Together, the phrase points to a specific exception that still depends on the pilot flying by sight.
Why Pilots Care
Allows pilots to continue VFR flight in marginal weather around airports without needing an instrument rating or full IFR clearance, while ATC maintains separation.
Intuition Check
Special does not mean optional, easier, or pilot-chosen. Here it means a specific clearance with specific limits when normal VFR weather requirements are not met.
Example Sentence 1
With a low cloud layer over the field, the pilot requested special visual flight rules to depart the Class D airspace and continue to clearer weather nearby.
Example Sentence 2
Under special visual flight rules the helicopter maintained one-mile visibility while crossing the airport traffic area.