Controllers may authorize simultaneous opposite direction operations on parallel runways only when __________.

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Multiple Choice

Controllers may authorize simultaneous opposite direction operations on parallel runways only when __________.

Explanation:
Simultaneous opposite-direction operations on parallel runways depend on pilots being able to see and avoid each other, which requires Visual Meteorological Conditions. Under VMC, the controller can rely on visual separation and coordination between the two runway operations, making it feasible to run opposite directions at the same time. In IFR conditions, visibility is insufficient for reliable visual separation, so such operations aren’t authorized. Runway surface being dry or winds being calm don’t address the safety factor of visibility and pilot awareness, so they don’t determine the allowance for these operations.

Simultaneous opposite-direction operations on parallel runways depend on pilots being able to see and avoid each other, which requires Visual Meteorological Conditions. Under VMC, the controller can rely on visual separation and coordination between the two runway operations, making it feasible to run opposite directions at the same time. In IFR conditions, visibility is insufficient for reliable visual separation, so such operations aren’t authorized. Runway surface being dry or winds being calm don’t address the safety factor of visibility and pilot awareness, so they don’t determine the allowance for these operations.

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