5at Train

The 5AT Group - Steaming Ahead with Advanced Technology

Enhancing Performance -- Improving Reliability -- Reducing Costs -- Controlling Emissions

Technical Terms and Definitions relating to Steam Locomotives

The following pages are provided to guide people who are not familiar with steam locomotive terminology.  The list is by no means complete and will be added to in the future.  Contributions from readers will be welcome.

Anyone who is not familiar with the basic workings of the steam locomotive is recommended to read "How a Steam Locomotive Works" by Dominic Wells, published by Ian Allan in 2010.   Information about this excellent book can be found on Dominic's page of this website.