Interesting facts about the TTRR

On a busy day with full, heavy trains, engine #10 can consume as much as 140 pounds of coal, and will completely boil 100-150 gallons of water, turning it into steam to provide power to propel the engine and pull the trains.

The steam engines have a working pressure of 115 pounds per square inch (PSI) or roughly 800 kilopascals (kPa). They use a very special oil to lubricate the valves and cylinders, since we all know oil and water don’t mix. Ask one of the engineers if you’d like to see a drop.

Steam engines develop their power primarily from torque, as their speed (measured in revolutions per minute) is not very high. Steam engines in general tend to have fairly long strokes compared to internal combustion engines, so that the steam can have more time to expand and push the piston before it is exhausted. Both engine #10 and engine #22 have 6 inch strokes, and might reach 90 RPM at top speed.