An older engine, the boiler has had a twice working pressure hydraulic test although, in the absence of any previous history, will need to be lifted from the frames for a repeat test with cladding off before certification could be issued.
The chassis runs - slightly asthmatically - on air in both directions.
| gauge | 3 1/2 inch gauge |
| length/inches | 21 + 16 |
| width/inches | 7 |
| height/inches | 11 |
| weight/kg | 24 |
| wheel material | cast iron |
| axlebox type | plain bearing |
| cylinder material | gunmetal |
| valve type | slide |
| valve gear | Stephensons |
| reverser type | screw |
| lubricator type | mechanical |
| year built | unknown |
| boiler maker | non-commercial |
| CE mark | n/a - non-commercial |
| working pressure/psi | 80 |
| boiler type | locomotive |
| boiler material | copper |
| boiler construction | silver soldered |
| superheater(s) | 2 |
| superheater type | flue tube |
| safety valve(s) | 1 |
| safety valve type | spring |
| mechanical pump | 1 |
| hand pump | 1 |
| whistle | yes |