What is the minimum clearance required between the lowest rope and the highest obstacle during SPIE operations?

The minimum clearance required between the lowest rope and the highest obstacle during Special Patrol Insertion/extraction (SPIE) operations is set at 100 feet. This distance is essential to ensure the safety of personnel involved in the operation, as it provides a buffer to accommodate the movement of the rope and any potential fluctuations that may occur during the insertion or extraction process.

Maintaining this minimum clearance helps to prevent any accidental contact with obstacles, which could pose risks of injury or equipment damage. Adequate clearance also allows for unexpected changes in wind patterns or environmental conditions that could affect the stability of the ropes during operations. Overall, adhering to this standard for minimum clearance is crucial for ensuring a safe and effective SPIE operation.