What is the rule for determining additional HE platform length on a C-17?

When determining the additional HE (High-Explosive) platform length for a C-17, the correct guideline is to add 500 yards for each additional platform. This rule is critical for ensuring safe drop zones and for ensuring that there is adequate distance between the drop zone and any potential hazards or unintended consequences of delivering HE munitions.

In air drop operations, especially with high-explosive materials, safety and calculated distances are paramount. Each additional platform increases the potential for residual blast effects, necessitating a systematic approach to ensure that these effects do not compromise safety for personnel or equipment in the vicinity.

Other options do not align with the established military guidance and standards for HE platform length adjustments as documented in air drop operational procedures. Thus, leveraging the correct figure of 500 yards per additional platform allows for accurate and safe operational planning.