Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 43, p. 196. Works numbers were 38678-38679 in November 1912.
The Illinois Southern was a bridge line that was formed in 1910 to consolidate the bankrupt Southern Illinois and the Southern Missouri. In 1920, the Missouri-Illinois was formed through the reorganization of the SI. The two Mikados in this entry retained their numbers under the new ownership.
501 had the shorter life and suffered a more violent end when its boiler exploded in 1930. 502 was later sold to the Missouri Pacific as their 1282 and operated until May 1952.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 501 |
Locobase ID | 14116 |
Railroad | Illinois Southern |
Country | USA |
Whyte | 2-8-2 |
Number in Class | 2 |
Road Numbers | 501-502 |
Gauge | Std |
Number Built | 2 |
Builder | Baldwin |
Year | 1912 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 15.33 / 4.67 |
Engine Wheelbase (ft / m) | 30 / 9.14 |
Ratio of driving wheelbase to overall engine wheelbase | 0.51 |
Overall Wheelbase (engine & tender) (ft / m) | 58.08 / 17.70 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 160,000 / 72,575 |
Engine Weight (lbs / kg) | 197,000 / 89,358 |
Tender Loaded Weight (lbs / kg) | 130,000 / 58,967 |
Total Engine and Tender Weight (lbs / kg) | 327,000 / 148,325 |
Tender Water Capacity (gals / ML) | 7000 / 26.52 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 12 / 11 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 67 / 33.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 56 / 1422 |
Boiler Pressure (psi / kPa) | 180 / 1240 |
High Pressure Cylinders (dia x stroke) (in / mm) | 22" x 28" / 559x711 |
Tractive Effort (lbs / kg) | 37,026 / 16794.73 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.32 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 344 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 14.50 / 4.42 |
Firebox Area (sq ft / m2) | 194.90 / 18.11 |
Grate Area (sq ft / m2) | 34.90 / 3.24 |
Evaporative Heating Surface (sq ft / m2) | 2792 / 259.38 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 2792 / 259.38 |
Evaporative Heating Surface/Cylinder Volume | 226.62 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 6282 |
Same as above plus superheater percentage | 6282 |
Same as above but substitute firebox area for grate area | 35,082 |
Power L1 | 5136 |
Power MT | 283.07 |