What defines CASE 1 flight operations?

The definition of CASE 1 flight operations is characterized by conditions that ensure a safe and efficient environment for flight operations. Specifically, this includes clear weather with a visibility of 5 nautical miles or greater and a minimum ceiling of 3,000 feet. These parameters provide the necessary conditions for pilots to take off and land safely while maintaining visual reference to ground and water features.

In summary, the correct choice reflects the criteria required to support CASE 1 operations, allowing for optimal safety and operational effectiveness in VFR (Visual Flight Rules) conditions.