What environmental factors are considered when calculating takeoff distance?

When calculating takeoff distance, several key environmental factors must be taken into account to ensure the safety and efficiency of the takeoff. Elevation plays a significant role because an increase in altitude can lead to a decrease in air density, which affects engine performance and lift. Higher temperatures also reduce air density, which can result in longer takeoff distances. Wind is another critical factor; a headwind can decrease the ground speed needed for takeoff, while a tailwind can increase it, affecting the distance required to achieve takeoff speed. Finally, the weight of the aircraft influences its performance during takeoff. A heavier aircraft requires more lift, which can also affect the distance needed to become airborne.

Other choices include factors that, while they might have some relevance to aviation, do not directly impact the calculation of takeoff distance as effectively as the chosen factors.