Work to date is to a good standard - we'd put the engine at about 90% complete. It requires some platework including running boards, boiler fittings and wet header.
| gauge | 3 1/2 inch |
| length/inches | 36 + 18 |
| width/inches | 7 |
| height/inches | 10 1/2 |
| weight/kg | 32 1/2 + 10 |
| wheel material | cast iron |
| axlebox type | needle roller |
| cylinder material | cast iron |
| valve type | piston |
| valve gear | Walschaerts |
| reverser type | screw |
| lubricator type | mechanical |
| working pressure/psi | 80 |
| boiler type | locomotive with combustion chamber |
| boiler material | copper |
| boiler construction | silver soldered |
| superheater(s) | 4 flues |
| safety valve(s) | 2 |
| safety valve type | spring |