Built as a class of 15 locomotives by Sharp, Stewart & Company in 1894 they were notable as the first 4-6-0s - and, for a time, the most powerful locomotives - running in the country.
One example has survived in preservation, on display at the Riverside Museum in Glasgow (which, had we known when we were up there last weekend collecting a locomotive, we would have called in to see - as it was we spent the rest of the day at the fabulous Kelvingrove Art Gallery & Museum. Something for our next visit...)
This one has come to us direct from the builder, a capable model engineer who worked on it for many years before deciding, reluctantly, that - getting too big and heavy to handle - it was time to pass on to a younger pair of hands.
We'd put the engine at better than 90% complete. The boiler has had a club hydraulic test with certification issued, the chassis runs on air in either direction with further improvement in prospect following fine-tuning of the valve settings.
| gauge | 5 inch gauge |
| length/inches | 37+25 |
| width/inches | 9 1/2 |
| height/inches | 14 |
| weight/kg | 56+16 |
| wheel material | cast iron |
| axlebox type | plain bearing |
| cylinder material | gunmetal |
| valve type | slide |
| valve gear | Stephensons |
| reverser type | pole |
| injector(s) | 2 |
| boiler number | RH37ER63 |
| year built | 2012 |
| boiler maker | R Curtis |
| CE mark | n/a - non-commercial |
| working pressure/psi | 90 |
| boiler type | locomotive |
| boiler material | copper |
| boiler construction | silver soldered |
| hydraulic test valid to | 19/Sep/26 |
| superheater(s) | 2 |
| superheater type | radiant |
| safety valve(s) | 2 |
| safety valve type | spring |
| hand pump | 1 |
| whistle | yes |