A Unit Load Device (ULD) is a pallet or container used to consolidate and load luggage, freight, and mail onto wide-body and certain narrow-body aircraft. ULDs are designed to fit into the cargo hold of aircraft, maximizing the use of space and ensuring secure transport. They play a crucial role in the fast, safe, and efficient loading and unloading of aircraft cargo.
ULDs are utilized in air transport by allowing ground handling and cargo teams to consolidate cargo into single units outside of the aircraft, which can then be quickly loaded into the cargo hold. Each ULD is designed to fit specific aircraft models, adhering to size and weight restrictions to optimize capacity and maintain aircraft balance during flight. The use of ULDs reduces the time aircraft spend on the ground and enhances the security of goods by reducing exposure to damage.
ULDs are important in cargo and baggage handling because they help airlines and airports achieve several operational efficiencies: