Definition
This phrase is a fragment of the glossary entry for Visual Flight Rules (VFR) — the set of FAA regulations that govern aircraft operations conducted under visual reference to the ground and to other aircraft, rather than by reference to instruments alone. VFR specifies the minimum weather conditions (visibility and distance from clouds) and operating rules a pilot must comply with when navigating and maintaining separation by looking outside the aircraft.
Plain English
This is part of the FAA's definition of Visual Flight Rules. It describes the rules pilots follow when they fly by looking outside — using the ground, the horizon, and other aircraft to navigate and stay clear of traffic — instead of flying purely by instruments.
Context Anchor
Seen in discussions of visual flight rules, weather minimums, and the difference between flying by outside references and flying mainly by instruments.
Derivation
‘Visual’ comes from the Latin visus, meaning ‘sight.’ ‘Rules’ are simply the regulations that govern conduct. Together the phrase signals that the pilot is operating by what they can see, under a defined set of FAA regulations, rather than relying on cockpit instruments to control and navigate the aircraft.
Why Pilots Care
Determines whether a pilot may legally fly without an instrument rating and dictates minimum weather requirements that directly affect route choice, altitude, and safety margins.
Intuition Check
Do not read “visual references” as simply “I can see something outside.” In FAA use, it means the outside view is good enough to meet specific legal weather requirements and support safe control of the aircraft.
Example Sentence 1
The forecast showed clear skies and ten miles visibility, so the student planned the cross-country under VFR using visual references along the route.
Example Sentence 2
Under VFR the student kept the runway in sight while practicing traffic pattern entries.