Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 41, p. 179. Works number was 17597 in March 1900.
The SMR covered 2.25 miles from South Manchester to North Manchester. This tank was one of two locomotives operating on the line, which shuttled back and forth between connections to larger railroads.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 41, p. 179. (Thanks to Chris Hohl for his 4 April 2023 email correcting the boiler pressure.) Works number was 36441 in April 1911.
Eleven years after the SMRR took delivery of a 2-4-4T from Baldwin, it went back to Philadelphia for a significantly larger version. Baldwin reused the design from the 1908 Rahway Valley (Locobase 12884), a relatively large example of this wheel arrangement.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | 3 | 4 |
Locobase ID | 12403 | 13923 |
Railroad | South Manchester | South Manchester |
Country | USA | USA |
Whyte | 2-4-4T | 2-4-4T |
Number in Class | 1 | 1 |
Road Numbers | 3 | 4 |
Gauge | Std | Std |
Number Built | 1 | 1 |
Builder | Burnham, Williams & Co | Baldwin |
Year | 1900 | 1911 |
Valve Gear | Stephenson | Stephenson |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 7 / 2.13 | 7 / 2.13 |
Engine Wheelbase (ft / m) | 28.50 / 8.69 | 31.33 / 9.55 |
Ratio of driving wheelbase to overall engine wheelbase | 0.25 | 0.22 |
Overall Wheelbase (engine & tender) (ft / m) | 28.50 / 8.69 | 31.33 / 9.55 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | 54,000 / 24,494 | 74,700 / 33,883 |
Engine Weight (lbs / kg) | 95,000 / 43,091 | 150,300 / 68,175 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | ||
Tender Water Capacity (gals / ML) | 1200 / 4.55 | 2500 / 9.47 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3 / 3 | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 45 / 22.50 | 62 / 31 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 51 / 1295 | 56 / 1422 |
Boiler Pressure (psi / kPa) | 160 / 1100 | 180 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 22" / 381x559 | 17" x 24" / 432x610 |
Tractive Effort (lbs / kg) | 13,200 / 5987.43 | 18,950 / 8595.59 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.09 | 3.94 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 158 - 2" / 51 | 223 - 2" / 51 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 11.17 / 3.40 | 11.58 / 3.53 |
Firebox Area (sq ft / m2) | 87.70 / 8.15 | 152 / 14.12 |
Grate Area (sq ft / m2) | 14 / 1.30 | 18.20 / 1.69 |
Evaporative Heating Surface (sq ft / m2) | 1005 / 93.40 | 1495 / 138.89 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1005 / 93.40 | 1495 / 138.89 |
Evaporative Heating Surface/Cylinder Volume | 223.33 | 236.93 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 2240 | 3276 |
Same as above plus superheater percentage | 2240 | 3276 |
Same as above but substitute firebox area for grate area | 14,032 | 27,360 |
Power L1 | 4363 | 6004 |
Power MT | 356.25 | 354.39 |