Data from "Recent Belgian Locomotives," The Locomotive & Railway Carriage & Wagon Review, Vol III (May 1898), p. 70.
The author explains that this is a successor class to the Type 12s (Locobase 2568) that ran over most of the lines at the time. Road numbers included 911-912, 922, 943, 949, 1454, 2092-2100, 2220-2229. Among the changes were the adoption of Serve boiler tubes, a higher boiler pressure, and a conical stack with lip. The heavy outside frame remained.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | Series 12bis |
Locobase ID | 10088 |
Railroad | Belgian State Railways |
Country | Belgium |
Whyte | 2-4-2 |
Number in Class | 26 |
Road Numbers | 911+ |
Gauge | Std |
Number Built | 26 |
Builder | |
Year | 1897 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 5.58 / 1.70 |
Engine Wheelbase (ft / m) | 10.99 / 3.35 |
Ratio of driving wheelbase to overall engine wheelbase | 0.51 |
Overall Wheelbase (engine & tender) (ft / m) | 10.99 / 3.35 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | |
Engine Weight (lbs / kg) | 111,995 / 50,800 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 359 / 1.36 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 82.70 / 2100 |
Boiler Pressure (psi / kPa) | 175.50 / 1210 |
High Pressure Cylinders (dia x stroke) (in / mm) | 19.69" x 23.62" / 500x600 |
Tractive Effort (lbs / kg) | 16,518 / 7492.45 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
Heating Ability | |
Tubes (number - dia) (in / mm) | - 2.756" / 70 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 126.97 / 11.80 |
Grate Area (sq ft / m2) | 50.57 / 4.70 |
Evaporative Heating Surface (sq ft / m2) | 1377 / 128 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1377 / 128 |
Evaporative Heating Surface/Cylinder Volume | 165.42 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 8875 |
Same as above plus superheater percentage | 8875 |
Same as above but substitute firebox area for grate area | 22,283 |
Power L1 | 5846 |
Power MT |