In the Runway Use Program, what tailwind component may be present for runways not clear and not dry?

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Multiple Choice

In the Runway Use Program, what tailwind component may be present for runways not clear and not dry?

Explanation:
In the Runway Use Program, the wind component along the runway is a critical factor for safety, especially when the runway surface is degraded. When a runway is not clear and not dry, braking action is reduced and the risk of a longer rollout is higher. Under those conditions, no tailwind is allowed because a tailwind increases ground speed on touchdown and makes stopping distances longer on a contaminated surface. The only permissible tailwind component is zero knots; any positive tailwind would worsen braking performance and safety. That’s why the correct answer is 0 KT.

In the Runway Use Program, the wind component along the runway is a critical factor for safety, especially when the runway surface is degraded. When a runway is not clear and not dry, braking action is reduced and the risk of a longer rollout is higher. Under those conditions, no tailwind is allowed because a tailwind increases ground speed on touchdown and makes stopping distances longer on a contaminated surface. The only permissible tailwind component is zero knots; any positive tailwind would worsen braking performance and safety. That’s why the correct answer is 0 KT.

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