Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 17 p. 27.
The LAT sold this engine to the Las Vegas & Tonopah in December 1905 as its #1.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 17 p. 101. Works number was 12204 in September 1891.
This compound was identical to the Ten-wheeler shown in Locobase in 11886. It used 9" (229 mm) piston valves, but was in fact a pretty light and small compound.
Before too long, it was converted to the 19" x 24" simple-expansion layout of its sister engine #5. And like the 5, the 7 went to the Las Vegas & Tonopah in January 1906 as their #2.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 5 | 7 |
| Locobase ID | 11886 | 11887 |
| Railroad | Los Angeles Terminal | Los Angeles Terminal |
| Country | USA | USA |
| Whyte | 4-6-0 | 4-6-0 |
| Number in Class | 1 | 1 |
| Road Numbers | 5/1 | 7 |
| Gauge | Std | Std |
| Number Built | 1 | 1 |
| Builder | Burnham, Williams & Co | Burnham, Williams & Co |
| Year | 1891 | 1891 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 13.83 / 4.22 | 13.83 / 4.22 |
| Engine Wheelbase (ft / m) | 24.06 / 7.33 | 24.06 / 7.33 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.57 | 0.57 |
| Overall Wheelbase (engine & tender) (ft / m) | 47.37 / 14.44 | 47.37 / 14.44 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 76,000 / 34,473 | 76,000 / 34,473 |
| Engine Weight (lbs / kg) | 100,000 / 45,359 | 100,000 / 45,359 |
| Tender Loaded Weight (lbs / kg) | ||
| Total Engine and Tender Weight (lbs / kg) | ||
| Tender Water Capacity (gals / ML) | 3000 / 11.36 | 3000 / 11.36 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 42 / 21 | 42 / 21 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 56 / 1422 | 56 / 1422 |
| Boiler Pressure (psi / kPa) | 140 / 970 | 175 / 1210 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 | 11.5" x 24" / 292x610 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 19" x 24" / 483x610 | |
| Tractive Effort (lbs / kg) | 16,524 / 7495.17 | 12,341 / 5597.79 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.60 | 6.16 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 211 - 2" / 51 | 211 - 2" / 51 |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 12.19 / 3.72 | 12.19 / 3.72 |
| Firebox Area (sq ft / m2) | 128.10 / 11.91 | 128.10 / 11.91 |
| Grate Area (sq ft / m2) | 17 / 1.58 | 17 / 1.58 |
| Evaporative Heating Surface (sq ft / m2) | 1464 / 136.06 | 1464 / 136.06 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 1464 / 136.06 | 1464 / 136.06 |
| Evaporative Heating Surface/Cylinder Volume | 207.07 | 507.59 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 2380 | 2975 |
| Same as above plus superheater percentage | 2380 | 2975 |
| Same as above but substitute firebox area for grate area | 17,934 | 22,418 |
| Power L1 | 3890 | 4364 |
| Power MT | 338.53 | 379.77 |