The engine is free to turn over and runs on air, better in one direction that the other and with some wear apparent in one of the big ends.
| length/inches | 17 |
| width/inches | 7 |
| height/inches | 7 |
| weight/kg | 3 1/2 |
| bore x stroke/inches | 1 x 7/8 |
| wheel material | cast iron |
| cylinder material | cast iron |
| valve type | slide |
| valve gear | Stephensons |
| reverser type | pole |
| lubricator type | displacement |