Under what wheel-speed condition does anti-skid operate to reduce brake pressure?

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Enhance your knowledge for the Landing Gear and Brakes Test. Prepare with flashcards and multiple-choice questions with explanations. Ace your exam with confidence!

Multiple Choice

Under what wheel-speed condition does anti-skid operate to reduce brake pressure?

Explanation:
Anti-skid braking relies on wheel-speed sensors to prevent tire skid by modulating brake pressure when the wheel is about to lose traction. The risk of a skid is highest when wheels are turning slowly, because a small amount of braking force can stop a wheel from revolving while the aircraft is still moving. In that low-speed regime, the system automatically reduces brake pressure to let the wheel regain rotation and then can reapply braking as needed. This low-wheel-speed condition—around when the wheel speed falls below about 10 knots—is when anti-skid actively intervenes to prevent lockup.

Anti-skid braking relies on wheel-speed sensors to prevent tire skid by modulating brake pressure when the wheel is about to lose traction. The risk of a skid is highest when wheels are turning slowly, because a small amount of braking force can stop a wheel from revolving while the aircraft is still moving. In that low-speed regime, the system automatically reduces brake pressure to let the wheel regain rotation and then can reapply braking as needed. This low-wheel-speed condition—around when the wheel speed falls below about 10 knots—is when anti-skid actively intervenes to prevent lockup.

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