What must be considered for the landing distance to be accurate?

The accuracy of landing distance calculations is heavily influenced by the aircraft’s condition and the pilot's technique. The condition of the aircraft encompasses factors such as weight, configuration (like flaps and gear), and overall maintenance status. These elements can significantly impact the aircraft's performance during landing, including its stopping distance.

Pilot technique is equally crucial; it includes how well a pilot executes the landing approach, manages speed and descent rate, and uses brakes and reverse thrust effectively. Variations in these techniques can lead to substantial differences in landing distance. Therefore, assessing both the condition of the aircraft and the competency of the pilot directly correlates to accurately predicting landing distances.