Engineering guide to sizing a train horn air system. Explains operating pressure requirements, how to choose the right tank ...

If you've ever heard a train blowing its horn and thought, "Man, I wish I had that for my truck," you're not alone. This wonderful invention made its way from trains onto heavy trucks sometime around ...

We're willing to bet that despite not having statistical data to confirm the belief, stock horns are the most underrated pieces on any street-driven pickup truck. The 100- to 110-decibel devices are ...

Train horn legality on trucks varies by state. Federal DOT rules, state-by-state restrictions, inspection-state issues, ...