A TRS19 and above steam engine spec. for the GWR 3206 Class 'Barnum' 2-4-0 tender engine in early condition with round top firebox and 24in. stroke cylinders. Boiler pressure: 150psi. Tractive effort: 13140lbs. This spec. uses real world data and will perform most accurately if used with Stovepipe's e-specs for British rolling stock. Please see the included readme.txt for further information.