are used for the storage of cargo on the aircraft and are divided into two types
Pallets are secured by a net, attached to the rim of the pallet. The final shape (contour)chosen in the build-up of a ULD needs to fit the allocated aircraft type
Containers provide the shape (contour) so the contents are secured either by the
container doors being closed and bolted, or the door net being secured to the rims of the container walls and floor.