ScaleTrains 38487 HO Scale GE AC4400CW Diesel Union Pacific UP 7082 LokSound Building Block Set The K4 arrives factory-set for

The K4 arrives factory-set for maximum realism with a steam locomotive sound package that includes whistle

500mA/cell

Both locomotives are LEGACY® Control System equipped – able to run in LEGACY® Control mode

Brushless-ready transmission with strong

Constant brightness lighting

ScaleTrains 38487 HO Scale GE AC4400CW Diesel Union Pacific UP 7082 LokSound Building Block Set The K4 arrives factory-set forScaleTrains 38487 HO Scale GE AC4400CW Diesel Union Pacific UP 7082 LokSound Throughout the history of rail transportation, there have been innovations that revolutionized the industry. From Andrew Beards patented designs in the late 1800s that resulted in the automatic couplers that are still used today, to the adoption of diesel technology for locomotive propulsion, these seemingly small developments would lead to massive changes in the industry.