The Tractive Effort is the adhesion it has to the rail. That is a factor of weight and the height of the driving wheels. Freight engines had smaller drivers which applied more grip to the rail than passenger engines.windyhill4.2 wrote:It appears as tho it weighs more than it can pull, OR, am I reading that wrong ?
This engine is a dual purpose engine so the drivers are of a moderate height.
By the way this locomotive can pull 40 or more times it's own weight and do it at a fast speed as steam locomotives continually develop more horse power the faster they until they reach boiler capacity or they tear themselves apart, whichever comes first.