The document summarizes the process for off-loading and on-loading the Space Shuttle orbiters using the Shuttle Carrier Aircraft and dual-crane method. It describes how the orbiter is mated to the SCA using a Mate/Demate Device. It then details the dual-crane off-load technique, including past uses and the upcoming campaign to move orbiters to display sites. The process involves renting large cranes, building slings to attach to the orbiter, and coordinating the movement of the orbiter and SCA.