Definition
An aircraft conducting flight in accordance with Visual Flight Rules. The pilot navigates and maintains separation from other aircraft, terrain, and obstacles primarily by looking outside, and operates only in weather conditions that meet specified minimums for visibility and distance from clouds.
Plain English
An aircraft being flown by a pilot who is using their eyes out the window to see where they are going and to stay clear of other aircraft and clouds, in weather good enough to allow that.
Context Anchor
Seen in air traffic control communications, traffic advisories, flight plans, and discussions of weather minimums.
Derivation
VFR stands for Visual Flight Rules. The term highlights that the pilot is flying by visual reference to the outside world, as opposed to IFR (Instrument Flight Rules), where flight is conducted primarily by reference to instruments.
Why Pilots Care
Sets the weather minimums the flight must meet, decides which airspace can be entered without an ATC clearance, and determines whether the pilot needs an instrument rating for the planned route.
Intuition Check
VFR aircraft does not mean a special type of airplane. It means any aircraft that is being operated under visual flight rules at that time.
Example Sentence 1
The tower advised the IFR arrival of a VFR aircraft transitioning the area at 2,500 feet.
Example Sentence 2
VFR aircraft are not permitted to enter Class B airspace without a specific clearance from air traffic control.