What is the PI for a CDS drop from a C-17 during the day?

The correct answer is 225 yards from the lead edge. In the context of a CDS (Container Delivery System) drop from a C-17 aircraft during the day, the Planning Impact (PI) is determined by several factors, including altitude, the type of aircraft, and conditions of the drop zone.

For a daytime drop, the 225-yard distance is established as a standard that ensures the safety and accuracy of the drop. This distance allows for proper dispersion of the parachutes and the containers to land within the designated drop zone while avoiding any potential hazards or obstacles. Properly calculating this distance is critical for mission success and to ensure that the cargo lands safely and within a specific area, which is particularly important in combat or other operational situations.

Other distances such as 200, 250, or 275 yards from the lead edge may not align with the established guidelines pertinent to CDS drops from a C-17. These values either could pose risks in terms of land safety or be overestimating the necessary distance for a safe and effective drop, leading to potentially inefficient operations. Therefore, 225 yards is understood as the correct standard for this type of drop during the day.