Normal force during takeoff roll refers to the vertical force exerted on an aircraft by the ground surface during the initial acceleration phase of takeoff. This force, perpendicular to the runway surface, is generated by the aircraft’s weight and its distribution over the landing gear, providing the necessary support and lift-off conditions for the aircraft to become airborne. Normal force during takeoff roll ensures proper weight distribution and traction, facilitating safe lift-off. The formula to calculate Normal force is as follows:
Where:
- W is the weight in N,
- L is the lift force in N.