The Atlas 10003808 is a stunning HO scale model locomotive. It represents the U36B Auto Train #4005 in eye - catching white, red, and purple gold colors. Please note that the picture might show a different road number. In the late 1960s, GE introduced the 3,300hp U33B, and later in 1970, the 3,600hp U36B. Both were powered by the same GE FDL - 16 cylinder four - stroke engine, with the U36B achieving more horsepower through internal adjustments. One distinct feature of both models is the built - out radiator “wings” on the long hood. Atlas offers this model in early and late phases. The early phase has flush - mounted radiator and air intake screens on the long hood and a built - out area on the top of the front and rear pilots. The late phase comes with corrugated screens and a flat pilot face. There's an optional separate electrical equipment box on the left - side walkway behind the cab as per the prototype. It uses AAR - B or Blomberg trucks when appropriate. This locomotive has a newly upgraded cab. It also features separately - applied scale detail parts like windshield wipers, metal grab irons, and more. It has a five - pole skewed armature motor with dual flywheels for great performance at all speeds, directional lighting with golden - white LEDs, and blackened metal wheels. For DCC operation, it supports all programming modes, has flexible function key mapping, and six function outputs, following NMRA standards. The LokSound Select Dual - Mode decoder allows it to be used on both DC and DCC layouts. But the Atlas Quantum Engineer won't operate it on an analog (DC) layout. Also, on a DC - powered layout, a DCC and sound - equipped locomotive can't be grouped with one without both features. In terms of sound, it offers over 20 sound effects, 16 user - selectable horns, 2 user - selectable bells, and 2 user - selectable synchronized brake squeals, with manual and automatic notching modes for realism.

Using your Atlas U36B Auto Train locomotive is easy. First, if you're using a DCC layout, make sure your DCC system is set up according to the NMRA standards that this locomotive follows. You can program various functions like lights and sounds using the flexible function key mapping from F0 to F28. For analog (DC) use, the LokSound Select Dual - Mode decoder enables operation, but remember the Atlas Quantum Engineer won't work on a DC layout. When running your locomotive, take note that on a DC - powered layout, you can't couple this DCC and sound - equipped locomotive with one that doesn't have both DCC and sound. To maintain your locomotive, keep it clean. You can use a soft brush to gently remove dust from the body, especially from the radiator and air intake screens. For the wheels, wipe them carefully to ensure smooth movement. Avoid exposing the locomotive to extreme temperatures or humidity as it can damage the electrical components. If you want to change the sound settings, you can easily select different horns, bells, and brake squeals according to your preference. Also, you can switch between manual and automatic notching modes while the locomotive is running for a more realistic experience.