The boiler has had hydraulic and steam tests with new certification issued, with new clacks, pressure gauge and injector steam valve fitted. On test the engine proved free-steaming and ran in both directions with well-defined exhaust beats, although fitting stiffer springs would improve valve events.
| gauge | 5 inch |
| length/inches | 42 + 24 |
| width/inches | 10 |
| height/inches | 14 1/2. |
| weight/kg | 70+20 |
| wheel material | cast iron |
| axlebox type | plain bearing |
| cylinder material | cast iron |
| valve type | slide |
| valve gear | Walschaerts |
| reverser type | screw |
| injector(s) | 1 |
| boiler maker | non-commercial |
| boiler type | locomotive |
| boiler material | copper |
| boiler construction | silver soldered |
| hydraulic test valid to | 29-May-2028 |
| steam test valid to | 8-Sep-2025 |
| fusible plug | no |
| safety valve(s) | 2 |
| safety valve type | spring |
| mechanical pump | 1 |
| hand pump | 1 |
| whistle | yes |