Diesel Alco FA-1/FB-1 Set - Proto-Sound 3.0 & DCC Equipped -- Union Pacific #1501A & 1525B (Armour Yellow, gray)

The American Locomotive Company, one of the nation's premier steam locomotive builders, joined forces with Schenectady, New York neighbor General Electric to build the first standardized diesel-electric locomotives in the 1920s. But when the diesel revolution began in earnest after World War II, dependability problems with Alco's model 244 prime mover doomed the company to forever playing second fiddle to industry leader EMD. Built by Alco and EMD in New York between 1946 and 1959, the FA-1 was designed primarily to haul freight, as they did not have the space at the rear of the engine compartment to accommodate a passenger-service steam generator. Externally as well as mechanically the FA-1, designed by Ray Patten, appeared very similar to the ALCO PA models built around the same time period. Distinguishable from the FA-2, the FA-1's shutters were at the far end of the carbody, this was later changed to accommodate the steam generator that would be placed behind the