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Moel Tryfan Quarry “Tryfan” and “Cadfan”
While there were many small standard locomotives for the narrow gauge lines in quarries, some customers had special requirements. One of these was the Moel Tryfan quarry in North Wales that had an access tunnel that r...
General
| Property | Moel Tryfan Quarry “Tryfan” and “Cadfan”Remove |
|---|---|
| Built | 1902, 1904 |
| Manufacturers | Hunslet |
| Wheel arrangement | 0-4-0ST (Four-coupled) |
| Gauge | 584 mm |
Dimensions and weights
| Property | Moel Tryfan Quarry “Tryfan” and “Cadfan”Remove |
|---|---|
| Wheelbase | 0.99 m |
| Rigid wheelbase | 0.99 m |
| Service weight | 7 t |
| Adhesive weight | 7 t |
| Axle load | 3.5 t |
| Water capacity | 500 l |
| Fuel capacity | 0.5 t (coal) |
Boiler
| Property | Moel Tryfan Quarry “Tryfan” and “Cadfan”Remove |
|---|---|
| Grate area | 0.232 m² |
| Firebox surface | 1.301 m² |
| Tube heating surface | 7.99 m² |
| Evaporative heating surface | 9.29 m² |
| Total heating surface | 9.3 m² |
Power plant
| Property | Moel Tryfan Quarry “Tryfan” and “Cadfan”Remove |
|---|---|
| Driver diameter | 508 mm |
| Boiler pressure | 9.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 178 x 254 mm |
Power
| Property | Moel Tryfan Quarry “Tryfan” and “Cadfan”Remove |
|---|---|
| Power source | steam |
| Estimated power | 22 kW (30 PS) |
| Starting effort | 13.0 kN |
Calculated values
| Property | Moel Tryfan Quarry “Tryfan” and “Cadfan”Remove |
|---|---|
| Factor of adhesion | 1 : 5.29 |
| Optimal speed | 11 km/h |
| Power-to-weight ratio | 3.1 kW/t |
| Heating Surface Equivalent | 15.8 m² |
| Cylinder volume/HSE | 1 : 798.49 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 29.16 |
| Grate area/Heating surface | 1 : 40.04 |
| Firebox/Tube surface | 1 : 6.14 |
