What are the wind restrictions for tie down chains classified as heavy on the H60H?

The wind restrictions for heavy tie down chains on the H60H are established to ensure the safety and stability of the aircraft when it is parked or not in operation. These restrictions take into consideration the structural integrity of the aircraft and the effectiveness of the tie down equipment against wind forces.

Selecting 20 knots as the wind restriction recognizes the necessary balance between sufficient arresting force and practical safety measures. At this wind speed, the heavy tie down chains can effectively prevent movement of the aircraft, minimizing the risk of damage and ensuring that it remains secure on the flight deck or in any parking situation.

Wind speeds exceeding this threshold may pose a danger, potentially leading to the aircraft becoming unstable or at risk of being moved by gusts, which is why it is critical to adhere to these specifications for the safety and operational effectiveness of the aircraft and its crew.