It runs well on air down to low speed, with some wear evident in the connecting rod and main bearings.
| length/inches | 14 |
| width/inches | 6 |
| height/inches | 6 |
| weight/kg | 6 |
| wheel material | cast iron |
| axlebox type | plain bearing |
| cylinder material | cast iron |
| valve type | slide |
| valve gear | single eccentric |