Data from "Rhondda & Swansea Bay Ry," The Locomotive Magazine, Vol VIII (13 June 1903), p. 406. Works numbers were 2435 in 1885, 2677 in 1886, and 3102-3104 in 1889.
For a history of the R & SB, see Locobase 10335. These were the first of the major classes of locomotive to operate on the Rhondda. Although moderately powerful, their fuel and water storage usually confined them to shunting (switching), but heavy traffic would calll them out on the main line for supplementary power.
Once the R&SB joined the newly enlarged Great Western Railway in January 1922, these side tanks worked as switchers for several years. In December 1934, 802 found coal duty at the Hartley Main Collery in Northumberland. Later taken on the National Coal Board roster as 29, the 802 fell under the ferro-knacker's torch in mid-1956
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 10338 |
| Railroad | Rhondda & Swansea Bay |
| Country | Great Britain |
| Whyte | 0-6-0T |
| Number in Class | 5 |
| Road Numbers | 1, 3, 5-7/799, 801-802, 805-806 |
| Gauge | Std |
| Number Built | 5 |
| Builder | Beyer, Peacock |
| Year | 1885 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 96,320 / 43,690 |
| Engine Weight (lbs / kg) | 96,320 / 43,690 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 96,320 / 43,690 |
| Tender Water Capacity (gals / ML) | 1020 / 3.86 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.50 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 54 / 27 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 54 / 1372 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 |
| Tractive Effort (lbs / kg) | 17,468 / 7923.36 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.51 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 199 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 89 / 8.27 |
| Grate Area (sq ft / m2) | 15.18 / 1.41 |
| Evaporative Heating Surface (sq ft / m2) | 1033 / 96 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1033 / 96 |
| Evaporative Heating Surface/Cylinder Volume | 163.84 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2429 |
| Same as above plus superheater percentage | 2429 |
| Same as above but substitute firebox area for grate area | 14,240 |
| Power L1 | 3376 |
| Power MT | 231.81 |