Braking Action
Definition
The effectiveness of braking on a runway surface, reported as good, medium, poor, or nil. Contamination from water, snow, or ice degrades braking action. Mu values below 0.40 indicate deteriorated conditions.
Why Braking Action Matters for Pilots
Performance planning directly affects flight safety. Knowing how Braking Action works helps you calculate whether a takeoff or landing is safe for given conditions. FAA and EASA exams frequently test performance concepts, and examiners expect you to apply Braking Action to real-world scenarios during oral exams and checkrides.
Exam Tip
This concept is commonly tested in performance-related questions on FAA and EASA exams. Make sure you can explain Braking Action in your own words for the oral exam. Practice applying this concept to real-world scenarios, not just memorizing the definition.
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