What is the maximum number of empty pallets that can be stacked safely?

The maximum number of empty pallets that can be stacked safely, which is indicated as 20 high with rings down, reflects industry standards and safety guidelines for handling pallets. When pallets are stacked, the way they are oriented plays a critical role in stability and safety. Stacking with the rings down means that the base of the pallets, which often has structural reinforcements, is providing a more stable base for the pallets above.

In practice, the height of 20 pallets is established based on factors like the material properties of the pallets, the weight distribution, and safety regulations that aim to prevent accidents or collapses. Higher stacks may increase the risk of instability, especially when combined with factors like shifts in weight or environmental conditions that could affect balance.

Understanding the limits set by these industry practices is essential for air load planning to ensure cargo safety and efficiency during transport. Other options suggest higher stack counts, which could compromise this safety and are not aligned with established guidelines.