When building a pallet, which type of cargo should be loaded first?

When building a pallet, dense cargo should be loaded first because it helps establish a solid base for the rest of the load. Dense cargo, often heavier, offers stability and reduces the risk of shifting during transport, which is critical for maintaining the integrity of the pallets and the safety of the aircraft.

Loading the dense cargo first ensures that it will not be damaged by the other types of cargo that might be more fragile or less dense placed on top. This method takes advantage of weight distribution principles, preventing top-heavy situations that can lead to instability.

In contrast, fragile cargo should typically be loaded last to protect it from being crushed or damaged by heavier items underneath. Light and medium density cargo, while easier to handle and place, are often positioned above the denser cargo to allow for better distribution of weight and protection for fragile items. This loading technique is vital to achieving proper balance and securing the cargo effectively, reducing the likelihood of shifting during flight.