What is the ending width of the horizontal plane?

What is the ending width of the horizontal plane?

• A. 20000 ft
• B. 15000 ft
• C. 9000 ft
• D. 16000 ft

Answer: (D)

The horizontal plane in airfield planning is the plan-view reference used to define the movement area’s lateral extent. The width at the end of this plane must provide enough clearance for the largest expected aircraft to maneuver safely—accounting for wingspan, turning radii, and required margins from edges and obstacles. A width of 16,000 ft reflects those required clearances in this scenario, ensuring there’s sufficient space for taxiing, turning, and avoidance of encroachments throughout operations. The smaller widths would not meet the needed margins for safe maneuvering of the largest airframes, so they aren’t adequate.

The horizontal plane in airfield planning is the plan-view reference used to define the movement area’s lateral extent. The width at the end of this plane must provide enough clearance for the largest expected aircraft to maneuver safely—accounting for wingspan, turning radii, and required margins from edges and obstacles. A width of 16,000 ft reflects those required clearances in this scenario, ensuring there’s sufficient space for taxiing, turning, and avoidance of encroachments throughout operations. The smaller widths would not meet the needed margins for safe maneuvering of the largest airframes, so they aren’t adequate.