ATHG41175 HO U50 Locomotive, UP #41 - DCC SoundUP FEATURES: Beacon (Flash function in DCC only) Classification lights (Function in DCC only) Working Truck lights Number board lights Separate see through air intake grills MU hoses Due to the increase of better highways in the 1950s the trucking industry was beginning to siphon off time sensitive traffic from the railroads. Consequently, in the late 1950s the Union Pacific began seeking ways to increase the horsepower of their locomotives in order