Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 21, p. 257. Works number was 16234 in September 1898.
The specifications described a hybrid tender-tank locomotive in which the "Eng. [sic] & Tend. [sic] to be connected as M.N Forneys pt. 'B'" . Since Forney had designed tank engines for elevated railways and other tightly restricted venues, Locobase takes this to mean a permanent coupling between the two.
Also in the specs resided the limitations within which the engine had to operate. The rails were "exactly" 30 lb/yard (15 kg/metre), although the extension's rails would weigh 40 lb/yard (20 kg/metre). Maximum ruling grade reached 4 degrees and the curves bent to 200 ft radius. Speed limit was 19 mph (30 km/h).
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 21, p. 36. Works number was 15458 in August 1897.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 7 | M A Garo |
| Locobase ID | 12296 | 12238 |
| Railroad | Cauca | Cauca |
| Country | Colombia | Colombia |
| Whyte | 0-6-2T | 0-6-2T |
| Number in Class | 1 | 1 |
| Road Numbers | 7 | |
| Gauge | 3' | 3' |
| Number Built | 1 | 1 |
| Builder | Burnham, Williams & Co | Burnham, Williams & Co |
| Year | 1898 | 1897 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 6.25 / 1.90 | 8 / 2.44 |
| Engine Wheelbase (ft / m) | 13.33 / 4.06 | 17.17 / 5.23 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.47 | 0.47 |
| Overall Wheelbase (engine & tender) (ft / m) | 13.33 / 4.06 | 17.17 / 5.23 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 42,000 / 19,051 | 60,000 / 27,216 |
| Engine Weight (lbs / kg) | 48,000 / 21,772 | 67,000 / 30,391 |
| Tender Loaded Weight (lbs / kg) | ||
| Total Engine and Tender Weight (lbs / kg) | ||
| Tender Water Capacity (gals / ML) | 1000 / 3.79 | 900 / 3.41 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 23 / 11.50 | 33 / 16.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 33 / 838 | 37 / 940 |
| Boiler Pressure (psi / kPa) | 160 / 1100 | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 16" / 305x406 | 14" x 18" / 356x457 |
| Tractive Effort (lbs / kg) | 9495 / 4306.86 | 12,968 / 5882.19 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.42 | 4.63 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 112 - 1.75" / 44 | 120 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 10 / 3.05 | 11.08 / 3.38 |
| Firebox Area (sq ft / m2) | 45 / 4.18 | 72.31 / 6.72 |
| Grate Area (sq ft / m2) | 9 / 0.84 | 9.40 / 0.87 |
| Evaporative Heating Surface (sq ft / m2) | 552 / 51.30 | 676 / 62.83 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 552 / 51.30 | 676 / 62.83 |
| Evaporative Heating Surface/Cylinder Volume | 263.56 | 210.79 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 1440 | 1504 |
| Same as above plus superheater percentage | 1440 | 1504 |
| Same as above but substitute firebox area for grate area | 7200 | 11,570 |
| Power L1 | 3265 | 3192 |
| Power MT | 514.15 | 351.86 |