Data from "Old Belgian Locomotives," The Locomotive Magazine, Vol IX (19 September 1903)., p.172. St Leonard works numbers were 273-280.
Built for the Brussels-Namur traffic on the C du Lu's main line, this octet was bigger than what would be classed as Type 1 (see Locobase 10360), but had much smaller drivers. As delivered, the class had its steam squarely over the front coupled axle. The locomotives had frames of brick red and black lines, both the boiler and the splashers had bands of polished brass.
They coped with the stiff adverse grades for about 11 years, during which time the C du Lu was absorbed by the Belgian State system. Increasing train weights, however, overwhelmed their capacity and they were reassigned to working local traffic out of Antwerp.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 72 |
| Locobase ID | 10371 |
| Railroad | Compagnie du Luxembourg / Belgian State |
| Country | Belgium |
| Whyte | 2-4-0 |
| Number in Class | 8 |
| Road Numbers | 72-79 / 870-877 |
| Gauge | Std |
| Number Built | 8 |
| Builder | SA Saint Leonard |
| Year | 1866 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 13.94 / 4.25 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 27,999 / 12,700 |
| Weight on Drivers (lbs / kg) | 47,840 / 21,700 |
| Engine Weight (lbs / kg) | 72,752 / 33,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 2112 / 8 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 4.40 / 4 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 40 / 20 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 68.50 / 1740 |
| Boiler Pressure (psi / kPa) | 114.60 / 790 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16.54" x 24.02" / 420x610 |
| Tractive Effort (lbs / kg) | 9345 / 4238.83 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.12 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 199 - 2.008" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.48 / 3.50 |
| Firebox Area (sq ft / m2) | 93.07 / 8.65 |
| Grate Area (sq ft / m2) | 22.60 / 2.10 |
| Evaporative Heating Surface (sq ft / m2) | 1023 / 95.10 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1023 / 95.10 |
| Evaporative Heating Surface/Cylinder Volume | 171.26 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2590 |
| Same as above plus superheater percentage | 2590 |
| Same as above but substitute firebox area for grate area | 10,666 |
| Power L1 | 3260 |
| Power MT | 300.46 |