Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 9, p. 101.See Locobase 16366 for a skeptical 1877 view of steam dummies and Locobase 11577 for a supporting 1889 discussion of the problems associated with running steam dummies on urban street railways. Baldwin works number was 4638 in May 1879.
See also John W Diers & Aaron Isaacs, Twin Cities by Trolley: The Streetcar Era in Minneapolis and St Paul (Minneapolis, Minn: University of Minnesota Press, 2007), pp. 28 et seq. This steam dummy helped to open this street railway and was so characteristic of the motive power that the line would be known as the Motor Line. According to Diers & Isaacs, the line "...was built to promote development by providing reliable transportation from the fringes of the city to the downtown. Investors saw it as a way to open the area around Lakes Calhoun and Harriet for recreation and housing."
Principal Dimensions by Steve Llanso of Sweat House Media | |
---|---|
Class | 1 |
Locobase ID | 11751 |
Railroad | Minneapolis, Lyndale & Lake Calhoun |
Country | USA |
Whyte | 0-4-2T |
Number in Class | 2 |
Road Numbers | 1-2 |
Gauge | 3' |
Number Built | 2 |
Builder | Burnham, Parry, Williams & Co |
Year | 1879 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 4 / 1.22 |
Engine Wheelbase (ft / m) | 10.50 / 3.20 |
Ratio of driving wheelbase to overall engine wheelbase | 0.38 |
Overall Wheelbase (engine & tender) (ft / m) | 10.50 / 3.20 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 18,000 / 8165 |
Engine Weight (lbs / kg) | 24,000 / 10,886 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 400 / 1.52 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 15 / 7.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 37 / 940 |
Boiler Pressure (psi / kPa) | 130 / 9 |
High Pressure Cylinders (dia x stroke) (in / mm) | 10" x 12" / 254x305 |
Tractive Effort (lbs / kg) | 3584 / 1625.68 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.02 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 54 - 1.5" / 38 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 7.04 / 2.15 |
Firebox Area (sq ft / m2) | 28 / 2.60 |
Grate Area (sq ft / m2) | 6.60 / 0.61 |
Evaporative Heating Surface (sq ft / m2) | 168 / 15.61 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 168 / 15.61 |
Evaporative Heating Surface/Cylinder Volume | 154.13 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 858 |
Same as above plus superheater percentage | 858 |
Same as above but substitute firebox area for grate area | 3640 |
Power L1 | 2265 |
Power MT | 554.83 |