Data from "Belgian Rolling Stock at the Paris Exhibition", Railroad Gazette, Volume 10 (6 September 1878), p. 431; and "VI - Locomotive-Wagon", Etudes sur l'Exposition de 1878: annales et archives de l'industrie au XIXe Siecle, 2d Partie, Tome Sixieme [6] (Paris: E Lacroix, 1878), p. 271.
Steam motors provided single-car service to many cities, although most had difficulty overcoming an inherent power limitation and steam's attendant noise, smoke, and odor. As in most of the others, small cylinders drove small wheels in the axle under the front of the car. A small boiler and firebox were placed above the axle and ahead of the baggage section, which was followed by a short vestibule with steps on each side, second-class wooden benches for 22 passengers, upholstered first-class benches for a similar number with separate access from a rear platform.
But there were significant differences. The running gear's three axles were separated and each of the front two were fixed to the frame. The rear axle rode under the carriage's after end but was mounted on a subsidiary triangular frame that swung through a small arc (30 mm to each side) from a pivot placed halfway between the center and rear axles.
The conductor-operator and the runner-fireman found the boiler easy to fire (or at least the 7 lb/mile (1.97 kg/km) coal consumption and max speed of 35 mph (56 kph) suggest).
A boiler set athwartships (i.e., 90 degrees from the line of travel) constituted another unusual feature and had a pear-shape cross-section with a broad bottom tapering to a narrower top.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | unknown |
Locobase ID | 20232 |
Railroad | Belgian State |
Country | Belgium |
Whyte | 0-2-2+2 |
Number in Class | 5 |
Road Numbers | |
Gauge | 50 cm |
Number Built | 5 |
Builder | Compagnie Belge |
Year | 1878 |
Valve Gear | Stephenson-Belpaire |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | |
Engine Wheelbase (ft / m) | 22.31 / 6.80 |
Ratio of driving wheelbase to overall engine wheelbase | |
Overall Wheelbase (engine & tender) (ft / m) | 22.31 / 6.80 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 19,687 / 8930 |
Weight on Drivers (lbs / kg) | 19,687 / 8930 |
Engine Weight (lbs / kg) | 44,225 / 20,060 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 290 / 1.10 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.60 / 1 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 38.20 / 970 |
Boiler Pressure (psi / kPa) | 217.60 / 1500 |
High Pressure Cylinders (dia x stroke) (in / mm) | 6.69" x 12.6" / 170x320 |
Tractive Effort (lbs / kg) | 2730 / 1238.31 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 7.21 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 153 - 1.26" / 32 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 4.76 / 1.45 |
Firebox Area (sq ft / m2) | 26.48 / 2.46 |
Grate Area (sq ft / m2) | 5.17 / 0.48 |
Evaporative Heating Surface (sq ft / m2) | 234 / 21.78 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 234 / 21.78 |
Evaporative Heating Surface/Cylinder Volume | 456.47 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1125 |
Same as above plus superheater percentage | 1125 |
Same as above but substitute firebox area for grate area | 5762 |
Power L1 | 9902 |
Power MT |