What minimum obstacle clearance is required in non-mountainous areas?

What minimum obstacle clearance is required in non-mountainous areas?

• A. 1,000 feet
• B. 2,000 feet
• C. 500 feet
• D. 1,500 feet

Answer: (A)

Minimum obstacle clearance in non-mountainous areas is 1,000 feet above the surface. This provides a safety margin from obstacles like towers, trees, and buildings that can exist even on flat terrain, and it helps ensure you have room to recover or select a safe landing area in an emergency. In contrast, mountainous terrain requires a higher clearance, typically 2,000 feet, because higher terrain creates greater risk. The lower options aren’t enough protection in typical non-mountainous areas, while the higher 2,000-foot value is reserved for mountainous regions.

Minimum obstacle clearance in non-mountainous areas is 1,000 feet above the surface. This provides a safety margin from obstacles like towers, trees, and buildings that can exist even on flat terrain, and it helps ensure you have room to recover or select a safe landing area in an emergency. In contrast, mountainous terrain requires a higher clearance, typically 2,000 feet, because higher terrain creates greater risk. The lower options aren’t enough protection in typical non-mountainous areas, while the higher 2,000-foot value is reserved for mountainous regions.