 Almost all of the engines on Gas Engine Row can be seen running during the shows.Steam Engine Row showcases many different types and sizes of stationary steam engines; from a monstrous Allis Chalmers Corliss engine with a flywheel, to a small J. Lefel & Sons portable engine.They are all powered by steam from two large boilers, nicknamed Pat and Rich, after two long-time museum volunteers who maintain and operate them.