Mystery steam engine

[chris123]

The small launches tend to run steel boilers that can make 200plus psi these will work with say a Stuart Swan or Cygnet and I don't doubt this engine could power a small launch. Some typical boiler shere

https://steamboatassociation.co.uk/SBAS-BoilerDesignLibrary

Not always easy to get a triple compound to run on air if built to the drawings. You need to play about with the eccentric positions a bit and may also need to feed HP steam to the IP cylinder. Or resort to leaving out a valve or piston altogether.

Hi jason
No need thats correct they turn straight out
Make tool an measure
See my lathe
Regards chris