Data from "Steam Ploughing Machinery and Traction Engines at the Kilburn [Agricultural ] Show- No. 11", Engineering, Volume 28, No 1 (4 July 1879), p. 3, 17. Works number 210 in December 1877.
One of the earliest Bagnall engines and one of the very smallest in Locobase, this was"altogether a very little engine suitable for its work". Its maximum height including chimney reached 4 ft 10 1/2 in, which meant the driver sat on a dropped footplate to allow his position to be roofed over.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Brick |
| Locobase ID | 21038 |
| Railroad | Beckenham & Penge Brick Works |
| Country | Great Britain |
| Whyte | 0-4-0T |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | 16 in |
| Number Built | 1 |
| Builder | WG Bagnall |
| Year | 1879 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 4 / 1.22 |
| Engine Wheelbase (ft / m) | 4 / 1.22 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 4 / 1.22 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 3584 / 1626 |
| Weight on Drivers (lbs / kg) | 6272 / 2845 |
| Engine Weight (lbs / kg) | 6272 / 2845 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 60 / 0.23 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.07 / 0.10 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 5 / 2.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 15 / 381 |
| Boiler Pressure (psi / kPa) | 140 / 970 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 4" x 6" / 102x152 |
| Tractive Effort (lbs / kg) | 762 / 345.64 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 8.23 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 17 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 5.25 / 1.60 |
| Firebox Area (sq ft / m2) | 11 / 1.02 |
| Grate Area (sq ft / m2) | 1.25 / 0.12 |
| Evaporative Heating Surface (sq ft / m2) | 52 / 4.83 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 52 / 4.83 |
| Evaporative Heating Surface/Cylinder Volume | 595.88 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 175 |
| Same as above plus superheater percentage | 175 |
| Same as above but substitute firebox area for grate area | 1540 |
| Power L1 | 4291 |
| Power MT | 3016.59 |