Ensuring Seamless Handling Throughout your Supply Chain The RKN e1 is a certified air cargo ULD (Unit Load Device). A ULD can be carried on board the most common types of wide body aircrafts. Moreover, ULD’s often get prioritized cargo status, are tracked in airlines fleet management and have a quick transfer process. These factors improve the fleet management, traceability and priority onboard of ULD’s, compared to non- ULD, reducing the risk of shipment delays.