This Athearn Genesis ATHG41177 HO scale model represents the GE U50 locomotive of the Union Pacific #52, equipped with DCC and sound. The SP version has unique features like the SP - style 'Big Hole' emergency light (flash function in DCC only), classification lights (function in DCC only), working truck lights, number board lights, MU hoses, and separate see - through air intake grills. In the 1950s, due to better highways, the trucking industry took traffic from railroads. So, the Southern Pacific and Union Pacific wanted to increase locomotive horsepower. General Electric created the 5,000 - horsepower U50 model with two 2500 - horsepower prime movers. The SP tried 3 of them in 1964 but didn't order more. They served on the Sunset Route and ended up in drag freight service in the Los Angeles Basin in the 1970s and were scrapped by 1979. Different road numbers have specific slogans. The U50 series features illuminated truck, classification, and number board lights, see - through air intakes, 4 - cube speakers, and a minimum radius of 18” (recommended 22”). The Genesis diesel locomotive has coupler cut levers, MU hoses, a trainline hose, see - through cab windows, and more. Sound - equipped models come with an onboard DCC decoder with SoundTraxx Tsunami2 sound, four cube speakers, and work in both DC and DCC.

Using this locomotive model is easy. First, make sure you have a compatible power source, either DC or DCC. If you're using DCC, you can enjoy additional functions like the flash of the emergency light and the operation of classification lights. For basic movement, just connect it to the power and place it on the track. When using the sound function, it'll work in both DC and DCC modes, giving you engine, horn, and bell sounds. For maintenance, keep it clean from dust and debris. You can use a soft brush to gently clean the body and wheels. Store it in the provided packaging when not in use to protect it. Be careful when handling it to avoid damaging the fine - scale details like handrails and couplers. And if you want to change some functions, refer to the CV chart included in the box.