Data from "Small Narrow-Gage [sic] Locomotive", Locomotive Engineering, Vol XI, No5 (June 1898), p. 307. Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 20, p. 126. (Thanks to Claus Gaertner for is 8 February 2016 email noting a typo in the works number.) Works number 15327 in May 1897.
Although small by any other standard, this engine is correctly described by LE's correspondent as of substantial size for this very narrow gauge. The little Mogul had an outside frame with individual outside cranks for each of the driven axles. The specs required these engines to move 100 gross tons of car and lading up a 1 1/2% grade at 5 mph (8 km) and to "pass curves 25 metres radius".
According to Wikipedia's entry on the successor Cazadero & San Pablo Railroad, this engine's design was similar to the Sandy River Railroad's #6 & #7. It also had many of the characteristics of the Mogyana locomotive shown in Locobase 10110.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 9949 |
| Railroad | Cazadero La Torre & Tepetongo |
| Country | Mexico |
| Whyte | 2-6-0T |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | 2' |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1897 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.50 / 2.29 |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 35,000 / 15,876 |
| Engine Weight (lbs / kg) | 41,000 / 18,597 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 550 / 2.08 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 19 / 9.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 33 / 838 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11.75" x 16" / 298x406 |
| Tractive Effort (lbs / kg) | 10,242 / 4645.70 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.42 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 62 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 10.92 / 3.33 |
| Firebox Area (sq ft / m2) | 39.98 / 3.72 |
| Grate Area (sq ft / m2) | 7.90 / 0.73 |
| Evaporative Heating Surface (sq ft / m2) | 392 / 36.43 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 392 / 36.43 |
| Evaporative Heating Surface/Cylinder Volume | 195.02 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1422 |
| Same as above plus superheater percentage | 1422 |
| Same as above but substitute firebox area for grate area | 7196 |
| Power L1 | 2915 |
| Power MT | 550.84 |