Data from "Narrow Gauge Light Locomotive for Passenger Traffic", Locomotive Magazine, Volume XXVII [27] (15 August 1921), pp. 112-114.
Drewry Car Company, Ltd began building BSA inspection railcars and from there established a good business in passenger railcars both in the UK and overseas.
Just after World War One, Drewry began offering small steam locomotives produced at Baguley's works. LM reported that the remarkably large firebox in the engine delivered to an Indian customer used improved Holden liquid fuel burners but could also take coal, patent fuel (i.e., briquettes), or wood. Its spark-arresting stack suggested such a heterodox approach. The oil tank held 6 1/2 cubic feet of oil.
LM explains the Baguley outside radial gear in detail. (See Locobase 9243 for another description.) Casting a verdict that the design "undoubtedly possesses meritorious qualities", the report said it was simple and inexpensive. All parts were well above the ground and did not overhang (useful in industrial settings) and the geometry was quite stable.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | stock tank |
| Locobase ID | 20826 |
| Railroad | Drewry |
| Country | Great Britain |
| Whyte | 0-4-2T |
| Number in Class | |
| Road Numbers | |
| Gauge | 2'6" |
| Number Built | |
| Builder | Baguley |
| Year | 1920 |
| Valve Gear | Bagueley |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3 / 0.91 |
| Engine Wheelbase (ft / m) | 10.46 / 3.19 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.29 |
| Overall Wheelbase (engine & tender) (ft / m) | 104.60 / 31.88 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | |
| Engine Weight (lbs / kg) | |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 264 / 1 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.30 / 0.30 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 20 / 508 |
| Boiler Pressure (psi / kPa) | 150 / 1030 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 6" x 9" / 152x229 |
| Tractive Effort (lbs / kg) | 2066 / 937.12 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 40 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6.25 / 1.90 |
| Firebox Area (sq ft / m2) | 22 / 2.04 |
| Grate Area (sq ft / m2) | 4.25 / 0.39 |
| Evaporative Heating Surface (sq ft / m2) | 112 / 10.41 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 112 / 10.41 |
| Evaporative Heating Surface/Cylinder Volume | 380.27 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 638 |
| Same as above plus superheater percentage | 638 |
| Same as above but substitute firebox area for grate area | 3300 |
| Power L1 | 3769 |
| Power MT | |