What is the maximum obstruction angle of the approach for daytime operations?

• A. 4 degrees
• B. 8 degrees
• C. 6 degrees
• D. 5 degrees

Answer: (C)

Daylight obstruction angle of the approach is about how steeply you can approach a sling-load target while still keeping safe clearance from obstacles. The value used for daytime operations is a moderate limit that balances staying clear of fixed objects with keeping the approach practical and achievable in good visibility. Too small a angle would make the approach unnecessarily conservative and slow, while too large a angle increases the risk of striking obstacles or losing control on the approach. The middle option aligns with this daytime standard, offering the safest balance between clearance and maneuverability; the other options would be either too restrictive or too permissive for daytime operations.