I've been reading the fascinating and free google e-book Catechism of the Locomotive
and am wondering how detailed the modeling of steam locomotives is in RS2012. It seems the standard controls are there- throttle, reverserer, multiple types of brakes. Do you have additional controls for water flow into the boiler, etc?
Do the different wheel configurations play differently?
What are the challenges you as the player face? Do you have to watch water-levels and will the boiler be damged if it runs low? Are failures modeled and trigerrable, like in a flight sim?
Mostly importantly, is it a fun way to learn more about the mechanics and operation of a steam locomotive?