The engine runs well on air. The steam pipe requires soldering back into its union - it's currently held with glue, not something we'd normally recommend for steam fittings...
| length/inches | 6 |
| width/inches | 5 |
| height/inches | 6 |
| weight/kg | 1/2 |
| cylinder material | brass, oscillating cylinders |
| safety valve(s) | 1 |
| safety valve type | spring |