The ground roll distance is the distance an aircraft travels along the runway from the start of the takeoff roll until it becomes airborne. It is a critical parameter in aviation performance, influenced by factors such as aircraft weight, lift-off speed, runway condition, coefficient of friction between the tires and the runway surface, and environmental conditions. One common simplified formula used to estimate takeoff ground roll distance is:
where:
- is the lift-off speed in m/s,
- g is the gravity in m/s2Â
- μ is the Coefficient of friction