Data from Negative 8871, Southern Methodist University, Central University Libraries, DeGolyer Library collection of digitized Baldwin images, retrieved 26 October 2010 from [] . See also DeGolyer Baldwin Specifications, Vol 71, pp. 269. Works number was 56767 in July 1923.
One of the smaller logging Prairies to run on the standard gauge. This oil-burner's mid-20s building date shows that certain applications--such as logging--resisted motor trucks more easily than others. It was specified to be easily convertible to burning coal fuel.
At some later date, ASJ sold the 9 to Mansfield Hardwood Lumber Company of Winnifield, La.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 9 |
Locobase ID | 11728 |
Railroad | A S Johnson Lumber Company |
Country | USA |
Whyte | 2-6-2 |
Number in Class | 1 |
Road Numbers | 9 |
Gauge | Std |
Number Built | 1 |
Builder | Baldwin |
Year | 1923 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 8 / 2.44 |
Engine Wheelbase (ft / m) | 22 / 6.71 |
Ratio of driving wheelbase to overall engine wheelbase | 0.36 |
Overall Wheelbase (engine & tender) (ft / m) | 46.23 / 14.09 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 58,220 / 26,408 |
Engine Weight (lbs / kg) | 79,360 / 35,997 |
Tender Loaded Weight (lbs / kg) | 69,640 / 31,588 |
Total Engine and Tender Weight (lbs / kg) | 149,000 / 67,585 |
Tender Water Capacity (gals / ML) | 3000 / 11.36 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1500 / 5678 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 32 / 16 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 42 / 1067 |
Boiler Pressure (psi / kPa) | 180 / 1240 |
High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 22" / 330x559 |
Tractive Effort (lbs / kg) | 13,544 / 6143.46 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.30 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 116 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 11.50 / 3.51 |
Firebox Area (sq ft / m2) | 74 / 6.87 |
Grate Area (sq ft / m2) | 13.30 / 1.24 |
Evaporative Heating Surface (sq ft / m2) | 767 / 71.28 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 767 / 71.28 |
Evaporative Heating Surface/Cylinder Volume | 226.92 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2394 |
Same as above plus superheater percentage | 2394 |
Same as above but substitute firebox area for grate area | 13,320 |
Power L1 | 4239 |
Power MT | 481.56 |