You have simultaneous same direction departures with 2 F18s. What is the minimum distance between runway centerlines?

• A. 1,000 ft
• B. 2,000 ft
• C. 500 ft
• D. 3,000 ft

Answer: (C)

When two fighters depart in the same direction from parallel runways, the important factor is having enough lateral room for each aircraft to follow its own distinct path from roll to initial climb. This separation must be large enough to avoid any risk of wingtip or engine-blast encroachment as the aircraft rotate and begin their climb, while still allowing efficient use of the airfield.

The minimum centerline spacing for this scenario is 500 feet. This spacing provides the necessary lateral clearance for two F-18s to rotate and establish their initial climb paths without interfering with each other, while keeping operations economical. Larger separations are used only when conditions or aircraft performance require extra room, but for simultaneous same-direction departures on parallel runways, 500 feet is the practical minimum.