Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 14, p. 242; and SP Menke All-Time Steam Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works number was 9746 in January 1889.
The original 1888 specs show a very similar steam dummy intended to run on the 25 lb/yard (12.5kg/metre) rail. It burned coal and had 54 tubes in the boiler. The data show the 2 as rebuilt after a December 1891 fire. Renumbered 1, it now burned oil.
Leased in 1892 by the Southern Pacific as a car service dummy, the 1 operated until 1916.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Redlands |
| Locobase ID | 16237 |
| Railroad | San Bernadino & Redlands (SP) |
| Country | USA |
| Whyte | 0-4-2T |
| Number in Class | 1 |
| Road Numbers | 2/1 |
| Gauge | 3' |
| Number Built | 1 |
| Builder | Burnham, Parry, Williams & Co |
| Year | 1889 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 4 / 1.22 |
| Engine Wheelbase (ft / m) | 11.33 / 3.45 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.35 |
| Overall Wheelbase (engine & tender) (ft / m) | 11.33 / 3.45 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 23,000 / 10,433 |
| Engine Weight (lbs / kg) | 32,650 / 14,810 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 395 / 1.50 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 245 / 927 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 19 / 9.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 35 / 889 |
| Boiler Pressure (psi / kPa) | 110 / 760 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 10" x 14" / 254x356 |
| Tractive Effort (lbs / kg) | 3740 / 1696.44 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.15 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 52 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 7.12 / 2.17 |
| Firebox Area (sq ft / m2) | 44 / 4.09 |
| Grate Area (sq ft / m2) | 7 / 0.65 |
| Evaporative Heating Surface (sq ft / m2) | 179 / 16.64 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 179 / 16.64 |
| Evaporative Heating Surface/Cylinder Volume | 140.94 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 770 |
| Same as above plus superheater percentage | 770 |
| Same as above but substitute firebox area for grate area | 4840 |
| Power L1 | 2016 |
| Power MT | 386.48 |