The boiler has had a hydraulic test with new certification issued, the chassis runs beautifully on air, as expected.
| gauge | Gauge 1 and smaller |
| length/inches | 12 |
| width/inches | 4 |
| height/inches | 6 |
| weight/kg | 5 |
| wheel material | steel |
| axlebox type | plain bearing |
| cylinder material | brass |
| valve type | piston |
| valve gear | simulated stephensons |
| reverser type | radio control |
| lubricator type | displacement |
| boiler number | OB:4 |
| year built | 2020 |
| boiler maker | Accucraft |
| CE mark | n/a - < 2 litre capacity |
| working pressure/psi | 60 |
| boiler type | centre flue |
| boiler material | copper |
| boiler construction | silver soldered |
| hydraulic test valid to | 23-Mar-2027 |
| safety valve(s) | 1 |
| safety valve type | spring |