What size landing point is required for a CH-47 with a long line sling load during nighttime operations?

For a CH-47 operating with a long line sling load during nighttime operations, a size 7 landing point is required to ensure safety and optimize operational effectiveness. The size designation refers to the minimum dimensions necessary for safe helicopter operations in various loading scenarios.

A size 7 landing point provides enough space for the helicopter's rotor wash and maneuvering room, reducing potential hazards and allowing ground personnel adequate distance from the rotor. Nighttime operations introduce additional complexities such as limited visibility, making it even more crucial to have a well-defined and adequately sized landing zone.

This ensures that the sling load can be accurately positioned and released without risk of interfering with obstacles or personnel. The specific sizing reflects considerations for both visibility and operational requirements that enhance safety when working under nighttime conditions.