In common with all the builder's models, the engine is unpainted and unsteamed from new.
| gauge | 3 1/2 inch |
| length/inches | 22 |
| width/inches | 10 |
| height/inches | 7 1/2 |
| wheel material | cast iron |
| axlebox type | plain bearing |
| cylinder material | cast iron |
| valve type | slide |
| valve gear | Stephensons |
| reverser type | pole |
| CE mark | n/a - non-commercial |
| working pressure/psi | 80 |
| boiler type | locomotive |
| boiler material | copper |
| boiler construction | silver soldered |
| hydraulic test valid to | 2/Jul/23 |
| safety valve(s) | 2 |
| safety valve type | spring |