Brake temperature limit for takeoff.

Brake temperature limit for takeoff.

• A. 250°C
• B. 300°C
• C. 350°C
• D. 400°C

Answer: (B)

Brake temperature limit for takeoff defines the maximum safe temp of the braking system at the start of the takeoff roll. Heat buildup during braking can reduce brake effectiveness (brake fade) and, if temperatures get too high, can stress or damage components and risk tire/rotor issues. Setting a limit of 300°C provides a safe margin where the brakes are still capable of delivering full performance for the takeoff and any immediate abort scenario, while avoiding the conditions that lead to fade or component damage. Exceeding this limit means you should not commence takeoff until brakes cool, or you must apply cooling procedures. The other temperatures would either be overly conservative or allow temperatures high enough to compromise braking performance and safety.

Brake temperature limit for takeoff defines the maximum safe temp of the braking system at the start of the takeoff roll. Heat buildup during braking can reduce brake effectiveness (brake fade) and, if temperatures get too high, can stress or damage components and risk tire/rotor issues. Setting a limit of 300°C provides a safe margin where the brakes are still capable of delivering full performance for the takeoff and any immediate abort scenario, while avoiding the conditions that lead to fade or component damage. Exceeding this limit means you should not commence takeoff until brakes cool, or you must apply cooling procedures. The other temperatures would either be overly conservative or allow temperatures high enough to compromise braking performance and safety.