A TRS19 and above steam engine spec. for the Midland Railway '1873' Class 0-6-0 goods engine with 5ft.2 1/2in. driving wheels, fitted with a later, larger type G7 boiler. Boiler pressure: 175psi. Tractive effort: 19890lbs. 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.'