In aviation, what does the term "VFR" stand for?

The term "VFR" stands for Visual Flight Rules, which is a critical concept in aviation that allows pilots to operate an aircraft in clear weather conditions. Under VFR, pilots rely on visual references outside the cockpit to navigate and control the aircraft, rather than solely relying on instruments. This is particularly vital for flying under good weather conditions, where visibility is sufficient to see the ground and other aircraft.

Visual Flight Rules provide a framework for pilots to fly safely while navigating through airspace. Pilots operating under VFR must adhere to specific regulations, such as maintaining certain visibility minimums and cloud clearance requirements, to ensure safety. This mode of operation contrasts with Instrument Flight Rules (IFR), which are used when weather conditions are below the minimums for VFR flights.

The other options do not accurately reflect the accepted terminology or procedural standards in aviation, making Visual Flight Rules the correct answer.