The Atlas Gold 40005371 is an N scale model of the EMD GP9 locomotive, specifically the New Haven #1221, featuring DCC and sound. The picture might show a different road number. Introduced in 1949, the Electro - Motive 1500hp GP - 7 combined F7 machinery with a hood - type carbody for high visibility and easy engine access. It could pull all kinds of trains and sometimes replace cab units. The GP - 9, with a 1750hp engine, looks similar to the GP - 7. Key features include a powered low - friction drive, blackened metal wheels, dual brass flywheels, directional lighting with golden - white LEDs, and AccuMate® couplers. For Gold locomotives, DCC operation supports all programming modes, includes RailCom and RailComPlus, offers flexible function key mapping, and follows NMRA standards. The ESU LokSound has over 20 sound effects, multiple user - selectable horns, bells, and brake squeals, along with manual and automatic notching modes for realistic operation.

Using this Atlas Gold N scale model train is easy. First, make sure your DCC system is set up according to the DCC operation features mentioned. You can use the flexible function key mapping to customize your train's functions. When starting the train, enjoy the realistic engine start - up sound from the ESU LokSound. You can switch between manual and automatic notching modes as you like during operation. As for maintenance, keep the train clean. Wipe the blackened metal wheels regularly to ensure smooth movement. Store the train in a dry and cool place to prevent any damage to the internal components like the dual brass flywheels. When programming the DCC system, follow the NMRA standards to avoid any issues. And always handle the train gently to protect the delicate parts such as the AccuMate® couplers.