FVM 10138 Trinity RD-4 Coal Hopper, UP Union Pacific/Building America #503752 Fox Valley Models N Scale

The FVM 10138 Trinity RD-4 Coal Hopper from Fox Valley Models in N Scale is a must - have for model train enthusiasts. It represents the UP Union Pacific/Building America with road number #503752, though the picture might show a different one. The Trinity RD - 4 Coal hopper, built since the mid - 1990s and still in use today, is a 4200 - cubic - foot modern car. Railroads and public utilities use these aluminum hoppers in unit trains to transport coal from fields to power plants or export ports. This FVM RD - 4 Hopper for UP comes with new road numbers, suitable for the era from 2003 to present. It's part of the 503600 - 503959 series, built from Oct 03 to Jan 04. It's fully assembled, with a detailed plastic body and die - cast weight featuring interior details. You can apply interior braces yourself. The removable coal load adds to the fun. The detailed free - rolling trucks and 36” machined metal wheels ensure smooth operation. It has body - mounted operating knuckle couplers compatible with Micro - Trains®. The printing and lettering are clear even under magnification. Weighted to industry standards, it operates on Code 55, 70, and 80 rail. The clear jewel box packaging safely stores the model. It has a minimum radius of 9 ¾” and a recommended radius of 11”. Coal transport by train has evolved over time, and the modern aluminum Trinity RD - 4 is a great representation of this progress.

Using your FVM 10138 Trinity RD - 4 Coal Hopper is easy. First, place it on your Code 55, 70, or 80 rail track. Make sure the track's radius is at least 9 ¾”, but 11” is recommended for better operation. You can load and unload the removable coal load to simulate real - life coal transportation. When handling the model, be gentle as the body - mounted operating knuckle couplers are delicate. For maintenance, keep the model clean. You can use a soft brush to remove dust from the detailed plastic body and the free - rolling trucks. Check the 36” machined metal wheels regularly for any signs of wear. If you notice any issues with the couplers or other parts, it's best to get professional help. Store the model in the provided clear jewel box when not in use to protect it from damage.