What is the significance of brake cooling times before takeoff?

The significance of brake cooling times before takeoff primarily lies in minimizing the risk of brake failure due to overheating. When an aircraft lands, the brakes are subjected to significant heat generation as they work to slow down and bring the aircraft to a complete stop. If the brakes do not have sufficient time to cool before the next takeoff, they may not perform effectively during the critical phases of flight, including takeoff and landing. Excessive heat can lead to reduced braking efficiency, brake fade, or even total brake failure, which poses a serious safety concern. Therefore, allowing adequate time for brake cooling is crucial for ensuring the safety and proper functioning of the braking system during subsequent operations.