FVM 10140 Trinity RD-4 Coal Hopper, UP Union Pacific/Building America #503764 Fox Valley Models N Scale

The FVM 10140 Trinity RD-4 Coal Hopper from Fox Valley Models in N Scale, featuring the UP Union Pacific/Building America #503764. Note that the picture might show a different road number. The Trinity RD-4 is a 4200 cubic foot modern aluminum coal hopper built from the mid - 1990s and still in service today. Railroads and public utilities use these cars in unit trains to transport coal from fields to power plants or ports. This FVM RD - 4 Hopper for UP comes with new road numbers, spanning from 2003 to the present. It's from Series 503600 - 503959, built from Oct 03 to Jan 04. It's fully assembled with a detailed plastic body and die - cast weight with interior details. It has modeler - applied interior braces, a removable coal load, and detailed free - rolling trucks with 36” machined metal wheels. The body - mounted operating knuckle couplers are Micro - Trains® compatible. The printing and lettering are clear even under magnification. It's weighted to industry standards and can operate on Code 55, 70, and 80 rail. It comes in a clear jewel box for safe storage. The minimum radius is 9 ¾” and the recommended radius is 11”. Coal transport by train has evolved over time, and the Trinity RD - 4 is a modern solution with a high - capacity, lightweight design and a rapid discharge feature.

Using your Fox Valley Models N Scale FVM 10140 Trinity RD - 4 Coal Hopper is easy. First, place it on your track. Make sure the track meets the minimum radius of 9 ¾ inches, though 11 inches is recommended for smoother operation. You can operate it on Code 55, 70, or 80 rail. The hopper comes fully assembled, so you can start using it right away. You can remove the coal load if you want to change the look or for cleaning. When it comes to maintenance, keep the 36” machined metal wheels clean. You can use a soft cloth to wipe off any dirt or debris. Check the body - mounted operating knuckle couplers regularly to ensure they are working properly. They are Micro - Trains® compatible, so you can easily replace them if needed. Store your model in the clear jewel box when not in use to protect it from dust and damage. And that's all you need to know to enjoy your coal hopper for a long time.