Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 66, p. 179. Works number was 54695 in March 1921.
Following the two wood-burners purchased by William H Knox for the Hacienda Roma (Locobase 15095), the sugar producer used Graham Howe & Company to buy a still larger (for the HR) oil-burning Consolidation. Like many such engines, the Gran Chimu was designed to be readily convertible to burn coal.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 66, p. 177. Works numbers were 51088-51089 in January 1919.
Two wood-burning Consolidations--Roma and Huanchaco--were purchased by the William H Knox company for this sugar mill in Peru. They were the largest Baldwins delivered to the Hacienda Roma to that point. See Locobase 13753 for a history of the HR.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | Gran Chimu | Roma |
| Locobase ID | 15096 | 15095 |
| Railroad | Hacienda Roma | Hacienda Roma |
| Country | Peru | Peru |
| Whyte | 2-8-0 | 2-8-0 |
| Number in Class | 1 | 2 |
| Road Numbers | ||
| Gauge | 3' | 3' |
| Number Built | 1 | 2 |
| Builder | Baldwin | Baldwin |
| Year | 1921 | 1919 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 10.33 / 3.15 | 10.33 / 3.15 |
| Engine Wheelbase (ft / m) | 16.08 / 4.90 | 16.08 / 4.90 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.64 | 0.64 |
| Overall Wheelbase (engine & tender) (ft / m) | 39.58 / 12.06 | 38.79 / 11.82 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 57,000 / 25,855 | 50,250 / 22,793 |
| Engine Weight (lbs / kg) | 63,500 / 28,803 | 56,450 / 25,605 |
| Tender Loaded Weight (lbs / kg) | 51,500 / 23,360 | 34,800 / 15,785 |
| Total Engine and Tender Weight (lbs / kg) | 115,000 / 52,163 | 91,250 / 41,390 |
| Tender Water Capacity (gals / ML) | 2300 / 8.71 | 1550 / 5.87 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1100 / 4164 | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 24 / 12 | 21 / 10.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 36 / 914 | 36 / 914 |
| Boiler Pressure (psi / kPa) | 170 / 1170 | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 18" / 330x457 | 13" x 18" / 330x457 |
| Tractive Effort (lbs / kg) | 12,210 / 5538.37 | 11,492 / 5212.69 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.67 | 4.37 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 100 - 2" / 51 | 72 - 2" / 51 |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 13.76 / 4.19 | 13.75 / 4.19 |
| Firebox Area (sq ft / m2) | 60 / 5.58 | 49 / 4.55 |
| Grate Area (sq ft / m2) | 14.30 / 1.33 | 11 / 1.02 |
| Evaporative Heating Surface (sq ft / m2) | 778 / 72.30 | 564 / 52.40 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 778 / 72.30 | 564 / 52.40 |
| Evaporative Heating Surface/Cylinder Volume | 281.35 | 203.96 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 2431 | 1760 |
| Same as above plus superheater percentage | 2431 | 1760 |
| Same as above but substitute firebox area for grate area | 10,200 | 7840 |
| Power L1 | 3976 | 2809 |
| Power MT | 615.13 | 492.96 |