Drone Lingo Simplified: Acronyms Every Pilot Needs To Know
Pilot Institute
MARCH 6, 2025
VFR Visual Flight Rules VFR is a set of regulations that allow a pilot to operate an aircraft using visual cues and without relying on instruments. VFR requires minimum weather and visibility conditions. These conditions can affect the performance of smaller or less equipped aircraft. A SIGMET is usually valid for four hours.
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