Data from Baldwin Locomotive Works Specification for Engines, 1903, as digitized by the DeGolyer Library of Southern Methodist University Volume 23, p. 224 and Volume 26, p. 282. Works numbers were 18618 in January 1901 and 23897 in March 1904. See also San Francisco Trains at [] for the Belt's history.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 45, p. 232. See also Locobase 11490. Works number was 38036 in July 1912.
The biggest differences between this 1912 saddle tank and the two that preceded it on the Belt Railway (Locobase 11490) were increases in cylinder volume and adhesion weight and slightly larger drivers. Curiously, this package included dropping the boiler pressure to a surprisingly low setting. The 5 used the standard Southern Pacific oil-burning setup in which the burner was "placed through the front end of the fire pan." All future Belt Railway locomotives (including their Alco diesels) would be all-adhesion engines. The 5 was sold to Columbia Steel in 1928.
Principal Dimensions by Steve Llanso of Sweat House Media | ||
---|---|---|
Class | 2 | 5 |
Locobase ID | 11490 | 14079 |
Railroad | Belt Rwy of State Harbor Commission | Belt Rwy of State Harbor Commission |
Country | USA | USA |
Whyte | 0-4-2ST | 0-4-2ST |
Number in Class | 2 | 1 |
Road Numbers | 2-3 | 5 |
Gauge | Std | Std |
Number Built | 2 | 1 |
Builder | Burnham, Williams & Co | Baldwin |
Year | 1901 | 1912 |
Valve Gear | Stephenson | Stephenson |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 7 / 3.56 | 7 / 2.13 |
Engine Wheelbase (ft / m) | 17.50 / 6.59 | 17.50 / 5.33 |
Ratio of driving wheelbase to overall engine wheelbase | 0.40 | 0.40 |
Overall Wheelbase (engine & tender) (ft / m) | 17.50 | 17.50 / 5.33 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | 94,300 / 42,774 | 100,000 / 45,359 |
Engine Weight (lbs / kg) | 100,000 / 45,359 | 119,000 / 53,978 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | 100,000 | 119,000 |
Tender Water Capacity (gals / ML) | 1200 / 4.55 | 1800 / 6.82 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1000 / 3785 | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 79 / 39.50 | 83 / 41.50 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 50 / 1270 | 51 / 1295 |
Boiler Pressure (psi / kPa) | 160 / 11 | 145 / 10 |
High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 | 19" x 24" / 483x610 |
Tractive Effort (lbs / kg) | 18,866 / 8557.48 | 20,938 / 9497.33 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.00 | 4.78 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 181 - 2" / 51 | 181 - 2" / 51 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 11.25 / 3.43 | 11.25 / 3.43 |
Firebox Area (sq ft / m2) | 88.60 / 8.23 | 97 / 9.01 |
Grate Area (sq ft / m2) | 12.60 / 1.17 | 13.90 / 1.29 |
Evaporative Heating Surface (sq ft / m2) | 1146 / 106.51 | 1153 / 107.16 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1146 / 106.51 | 1153 / 107.16 |
Evaporative Heating Surface/Cylinder Volume | 181.62 | 146.32 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 2016 | 2016 |
Same as above plus superheater percentage | 2016 | 2016 |
Same as above but substitute firebox area for grate area | 14,176 | 14,065 |
Power L1 | 3358 | 2562 |
Power MT | 157.01 | 112.96 |