The Athearn ATH73745 is an HO scale model of the SD40 locomotive from the Fort Worth & Western Railroad (FWWR). In 1988, the FWWR started by buying 6.25 miles of track from the old Burlington Northern Railroad and now owns 276 miles. It connects with three major railroads and a short - line. The FWWR is proud of its locomotives; each has a unique name. Units 2029 and 2030 are rebuilt SD40s named 'Eastland County' and 'Dallas County'. The SD40, introduced in 1966, has 3,000 hp from a turbocharged V16 engine. Many were built for American, Canadian, and Mexican railroads. This model has great features like LED lighting, photo - etched windshield wipers, and separately applied wire grab irons. It's DCC - ready with Quick Plug technology and comes with many sound - equipped features for optimal operation.

Using this Athearn HO scale SD40 locomotive is a breeze. First, make sure you have the right power source. If you're using DC, you can enjoy basic functions like engine, horn, and bell sounds. But for full - fledged operation, DCC is recommended. To start, connect the locomotive to your track and turn on the power. You can use the operating lighting functions with F5 and/or F6 on your DCC system. When it comes to programming, you can change many functions via the Configuration Value (CV) changes using the included CV chart. Remember, this locomotive has a minimum radius of 18 inches, but a 22 - inch radius is recommended for smoother operation. For maintenance, keep it clean. You can gently wipe the body with a soft cloth. Check the wheels regularly for any debris that might affect its movement. Store the locomotive in its interior plastic blister to keep it safe when not in use. If you want to connect multiple units, you can program a multiple - unit (MU) lashup so that only the lead unit controls the horn, bell, and lights.