Data from"Report of Committee on Power-Chicago, Rock Island & Pacific Railway-Descriptions of Standard Types of Locomotives," American Engineer and Railroad Journal, Volume 79 ( March 1905), pp. 84-86.
Part of the so-called "Harriman Common Standard", this class was completed without a superheater. Using the same firebox as the HCS Atlantics and Light Pacifics, the design had a middling number of tubes for a 2-8-0 of this size. Unlike the other two road engines of this policy, however, these were relatively big engines for their time and wheel arrangements and had comparatively big boilers for their cylinder volume.
Locobase 3165 (Southern Pacific) and 4399 (Union Pacific) are examples of this design. See Locobase 5340 for introduction to the HCS idea.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Heavy Consolidation C-187 |
| Locobase ID | 5342 |
| Railroad | Harriman Lines |
| Country | USA |
| Whyte | 2-8-0 |
| Number in Class | |
| Road Numbers | |
| Gauge | Std |
| Number Built | |
| Builder | |
| Year | 1904 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 15.67 / 4.78 |
| Engine Wheelbase (ft / m) | 24.33 / 7.42 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.64 |
| Overall Wheelbase (engine & tender) (ft / m) | 55.98 / 17.06 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 187,000 / 84,822 |
| Engine Weight (lbs / kg) | 208,000 / 94,347 |
| Tender Loaded Weight (lbs / kg) | 135,050 / 61,258 |
| Total Engine and Tender Weight (lbs / kg) | 343,050 / 155,605 |
| Tender Water Capacity (gals / ML) | 9000 / 34.09 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3535 / 13,380 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 78 / 39 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 57 / 1448 |
| Boiler Pressure (psi / kPa) | 200 / 1380 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 22" x 30" / 559x762 |
| Tractive Effort (lbs / kg) | 43,305 / 19642.84 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.32 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 413 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 15 / 4.57 |
| Firebox Area (sq ft / m2) | 177 / 16.44 |
| Grate Area (sq ft / m2) | 49.50 / 4.60 |
| Evaporative Heating Surface (sq ft / m2) | 3403 / 316.26 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 3403 / 316.26 |
| Evaporative Heating Surface/Cylinder Volume | 257.80 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 9900 |
| Same as above plus superheater percentage | 9900 |
| Same as above but substitute firebox area for grate area | 35,400 |
| Power L1 | 6172 |
| Power MT | 291.06 |