The chassis runs on air in both directions. The boiler has had a hydraulic test, which showed put several small leaks from the firehole door ring and firebox stays.
| gauge | 3 1/2 inch |
| length/inches | 27.5+17 |
| width/inches | 7 1/2 |
| height/inches | 12 |
| weight/kg | 20 + 7 |
| wheel material | cast iron |
| axlebox type | plain bearing |
| cylinder material | gunmetal |
| valve type | slide |
| valve gear | Stephensons |
| reverser type | pole |
| year built | unknown |
| boiler maker | non-commercial |
| boiler type | locomotive |
| boiler material | copper |
| boiler construction | silver soldered |
| superheater(s) | 2 |
| superheater type | flue tube |
| fusible plug | no |
| safety valve(s) | 1 |
| safety valve type | spring |
| mechanical pump | 1 |
| hand pump | 1 |
| whistle | yes |