Q: I have some N scale cars from Micro-Trains. Recently, I swapped out the factory-installed plastic wheelsets with metal wheelsets, but now the cars don’t roll freely.

WILLIAMS — Authorities are trying to determine the cause of a freight train derailment in northern Arizona that heavily damaged 23 cars and a load of new vehicles.

Check out what's clicking on Foxnews.com. Authorities are trying to determine the cause of a freight train derailment in northern Arizona that heavily damaged 23 cars and a load of new vehicles.

Authorities are trying to determine the cause of a freight train derailment in northern Arizona that heavily damaged 23 cars and a load of new vehicles. Coconino County Emergency Management ...

Amsterdam, N.Y. — A freight train derailed in upstate New York on Friday, disrupting Amtrak service and prompting authorities to close roads in the area. About 17 cars of a CSX train hauling ...