Definitions for "ULD"
Unit loading device. A piece of equipment used in Air Operations for handling and transporting Air freight.
Unit Load Device. Any type of container, container with integral pallet, aircraft container, or aircraft pallet.
Unit Load Device. Any type of container or pallets used to consolidate packages of freight for mechanical handling.
UPPER LEVEL DISCRIMINATOR. An SCA's maximum acceptable energy level. Incoming pulse amplitudes above this limit will not be passed. See also lower level discriminator.