Plain English Meaning
Tables or graphs in the aircraft's manual that tell the pilot how much runway will be needed to land safely on a given day, based on weather, weight, and runway conditions.
Full Definition
Performance charts published by the aircraft manufacturer that show the runway distance required to land the airplane under specified conditions. They typically account for pressure altitude, temperature, aircraft weight, headwind or tailwind component, runway slope, and runway surface, and may present both the ground roll distance and the total distance required to land a 50-foot .