Data from "New Stock, Kent And East Sussex Railway," The Locomotive Magazine, Vol XI (15 April 1905), p. pp 66-67.
As noted in the Rother Valley Railway entry at Locobase 10149, this southeastern England light railway expanded soon after it opened. This class of 8-coupled tanks was purchased to serve the goods (freight) traffic over the grades between Headcorn and Rolvenden. Note that because it was a light railway, the locomotive spread its weight over 4 axles and all of the engine's mass contributed to adhesion.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Hecate |
| Locobase ID | 10502 |
| Railroad | Kent & East Sussex |
| Country | Great Britain |
| Whyte | 0-8-0T |
| Number in Class | 1 |
| Road Numbers | 4 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Hawthorn Leslie |
| Year | 1904 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 15.33 / 4.67 |
| Engine Wheelbase (ft / m) | 15.33 / 4.67 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 15.33 / 4.67 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 97,440 / 44,198 |
| Engine Weight (lbs / kg) | 97,440 / 44,198 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 97,440 / 44,198 |
| Tender Water Capacity (gals / ML) | 1440 / 5.45 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 41 / 20.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 51 / 1295 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 24" / 406x610 |
| Tractive Effort (lbs / kg) | 16,384 / 7431.67 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.95 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 138 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 82 / 7.62 |
| Grate Area (sq ft / m2) | 15.75 / 1.46 |
| Evaporative Heating Surface (sq ft / m2) | 1000 / 92.94 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1000 / 92.94 |
| Evaporative Heating Surface/Cylinder Volume | 179.05 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2520 |
| Same as above plus superheater percentage | 2520 |
| Same as above but substitute firebox area for grate area | 13,120 |
| Power L1 | 3433 |
| Power MT | 310.69 |