Data from FC de Bolivia 11 - 1918 Locomotive and Car Diagrams and FC CC de Bolivia 1958 Locomotive Diagrams, both supplied in August 2022 by Allen Stanley from his extensive Railroad Data Exchange collection. Works numbers were 12748-12751 in 1914 and 21213-21214 in 1928.
In the same year that Henschel delivered four Consolidations to the FCB , the Kassel-based company produced this set of four Pacifics. Tall drivers for the gauge indicate the class was definitely meant for passenger service. In an interesting adaptation to the narrow gauge, the drivers turned inside the massive plate frames. Another feature was the Belpaire firebox, ahead of which was an enormous, highly polished steam dome.
Two more
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 33/333/756 |
| Locobase ID | 21075 |
| Railroad | Bolivia (FCAB) |
| Country | Bolivia |
| Whyte | 4-6-2 |
| Number in Class | 6 |
| Road Numbers | 33-38/333-338/756, 751-755 |
| Gauge | Metre |
| Number Built | 6 |
| Builder | Henschel & Sohn |
| Year | 1914 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 10 / 3.05 |
| Engine Wheelbase (ft / m) | 20.92 / 6.38 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.48 |
| Overall Wheelbase (engine & tender) (ft / m) | 58.38 / 17.80 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 26,455 / 12,000 |
| Weight on Drivers (lbs / kg) | 80,513 / 36,520 |
| Engine Weight (lbs / kg) | 142,881 / 64,810 |
| Tender Loaded Weight (lbs / kg) | 113,340 / 51,410 |
| Total Engine and Tender Weight (lbs / kg) | 256,221 / 116,220 |
| Tender Water Capacity (gals / ML) | 5689 / 21.55 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1931 / 7310 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 45 / 22.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 58.50 / 1486 |
| Boiler Pressure (psi / kPa) | 162.40 / 1120 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 24.02" / 508x610 |
| Tractive Effort (lbs / kg) | 22,672 / 10283.86 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.55 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 126 - 1.874" / 47.6 |
| Flues (number - dia) (in / mm) | 21 - 5.236" / 133 |
| Flue/Tube length (ft / m) | 14.99 / 4.57 |
| Firebox Area (sq ft / m2) | 123.03 / 11.43 |
| Grate Area (sq ft / m2) | 28.52 / 2.65 |
| Evaporative Heating Surface (sq ft / m2) | 1483 / 137.78 |
| Superheating Surface (sq ft / m2) | 409 / 38 |
| Combined Heating Surface (sq ft / m2) | 1892 / 175.78 |
| Evaporative Heating Surface/Cylinder Volume | 169.80 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4632 |
| Same as above plus superheater percentage | 5651 |
| Same as above but substitute firebox area for grate area | 24,376 |
| Power L1 | 10,477 |
| Power MT | 860.65 |