Rail Systems 101 Sleeper class Edit 2

[@pmsteamrailroading]

Sleepers, what most of your viewers call ties. Sleepers is what we call a car you sleep in.

[@felixvideoworkshop]

Thank you for your contribution, which is duly noted. The class will target an international audience, which is why I use internationally agreed terms and not local ones. Sleeper is the UIC term for what is called locally a tie. Where possible, I'll be inclusive of minority language and mention the different existing terms, but this is a prototype and thus far from perfect.