What is the minimum distance for a Category I departing behind a Category III on the same runway?

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Multiple Choice

What is the minimum distance for a Category I departing behind a Category III on the same runway?

Explanation:
Wake turbulence from a heavier leading aircraft can linger and affect following traffic. When a Category I departure follows a Category III on the same runway, the stronger vortices from the leading Category III require more separation to keep the next aircraft out of the wake. The minimum safe distance for this pairing is 6,000 feet, giving the vortices time to dissipate before the Category I aircraft reaches takeoff and climb. Smaller gaps, like 3,000 feet, risk wake encounters, while larger gaps are more than necessary for this situation. So, the best choice is 6,000 feet.

Wake turbulence from a heavier leading aircraft can linger and affect following traffic. When a Category I departure follows a Category III on the same runway, the stronger vortices from the leading Category III require more separation to keep the next aircraft out of the wake. The minimum safe distance for this pairing is 6,000 feet, giving the vortices time to dissipate before the Category I aircraft reaches takeoff and climb. Smaller gaps, like 3,000 feet, risk wake encounters, while larger gaps are more than necessary for this situation. So, the best choice is 6,000 feet.

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