What does IFR stand for in aviation terms?

In aviation, IFR stands for Instrument Flight Rules. This set of regulations governs flight operations when visual reference to the ground or horizon is not possible, typically in conditions like clouds or poor visibility. Pilots flying under IFR must rely on instruments within the cockpit to navigate and control the aircraft, ensuring safe passage even in challenging conditions. Understanding IFR is crucial for pilots as it involves communication with air traffic control, adherence to prescribed routes and altitudes, and compliance with procedures designed to manage traffic efficiently and safely in the skies. This emphasis on instrument proficiency is foundational for pilots, especially those flying in commercial aviation or in regions with frequent adverse weather.