Custom TE 25515lb 225psi boiler espec This is a custom enginespec based loosely around the BR class 4MT 2-6-4t locomotive. It is provided as an alternative enginespec for general use in Trs2006/2004. If you require an espec for your project, this may suit where the requirement is for around 25000lbs Tractive effort. Some liciense has been taken in an endevour to make driving as enjoyable as possible, so calculated figures may not match. Please try out.