The AMC/ARC Gantry Crane takes two of the most sophisticated TrainMaster Command Control components and incorporate them into a classic Lionel operating accessory. While the accessory features traditional controller operations in the conventional environment, the ARC/AMC components are pre-installed into the accessory for simple set-up and operation with TrainMaster Command Control.  In the Command Control environment, you get with variable speed and fine control of every action using your CAB-1 Remote Controller (sold separately). With the built-in AMC, you are able to rotate the cab and lower the magnet on the Gantry Crane. The ARC allows you to record and play back entire animated sequences you create with the Gantry Crane.