The prototype for this detailed Atlas N Scale Alco RS11 was Alco's competitor to the popular EMD GP9. The first RS11s were produced by Alco in early 1956. This locomotive, classified by Alco as model DL-701, was their replacement for the very popular RS3 road-switcher. Featuring a V-12, 1,800hp 251B diesel engine, the turbocharged RS11 accelerated faster, had a higher tractive effort rating and typically used less fuel than the competition. It was also quite versatile and could be found in heavy haul freight as well as The largest owner of RS11s was Norfolk & Western which purchased a total of 99 units (an additional 35 were added to the fleet after the merger with Nickel Plate). Other major purchasers included Northern Pacific, Pennsylvania and Southern Pacific, all of whom placed repeat orders. With approximately 426 units built for the US and Mexico over eight years of production, the RS11 was successful for Alco in that it provided ongoing competition for EMD s popular roadswitchers. A few examples of this model are still in service today and can be found working for various shortlines in the US. This model comes equipped with a dual-mode ESU LokSound sound and DCC decoder for operation on DCC and DC layouts (DC with reduced sound functions) and features a scale-speed motor with dual flywheels, directional LED lighting, accurate decoration and AccuMate(R) magnetic knuckle couplers. This RS11 is one of many
 
Note that although the dual-mode decoders will operate on DCC and DC layouts, DC and DCC units will not operate together in a consist.