Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 27, p. 233. See also "Engage in Huge Reforestry Plan--Perpetual Timber Supply Until Eternity at Great Southern Co.'s Tract at Bogalusa - A Local Reforestation Project", McKean County Democrat (12 February 1925), as archived at [], last accessed 15 December 2016'; and a series of short biographies on lumber companies and reforestation programs at [
], last accessed 15 December 2016. Works numbers were 25739 in May 1905 and 26055 in July.
Included in the order for the three East Louisiana logging Prairies described in Locobase 12771 were two other identical engines for the Pearl River area. The 10-mile B&PR opened in 1904; these were the only rod-driven locomotives built new for the line.
When Illinois Central bought the B & PR in 1910, it sold both engines to the Great Southern Lumber Company in 1910. The EL/NOGN engines would join the GSLC in 1916.
Although operating primarily in Louisiana, this firm was headquartered in Buffalo, NY. [See Courtenay de Kalb, "Perpetual Timber Supply Through Reforestation as Basis For Industrial Permanency", Timberman (July 1921), pp. 32A-32H, archived online at [], last accessed 25 June 2011. Describes founding of Bogalusa as well as then-new idea of managed timber harvesting.]
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | 7 |
Locobase ID | 12772 |
Railroad | Brookhaven & Pearl River |
Country | USA |
Whyte | 2-6-2 |
Number in Class | 2 |
Road Numbers | 7-8 |
Gauge | Std |
Number Built | 2 |
Builder | Burnham, Williams & Co |
Year | 1905 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 8.33 / 2.54 |
Engine Wheelbase (ft / m) | 23.83 / 7.26 |
Ratio of driving wheelbase to overall engine wheelbase | 0.35 |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 84,000 / 38,102 |
Engine Weight (lbs / kg) | 110,000 / 49,895 |
Tender Loaded Weight (lbs / kg) | 80,000 / 36,287 |
Total Engine and Tender Weight (lbs / kg) | 190,000 / 86,182 |
Tender Water Capacity (gals / ML) | 4000 / 15.15 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 47 / 23.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 45 / 1143 |
Boiler Pressure (psi / kPa) | 200 / 1380 |
High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 |
Tractive Effort (lbs / kg) | 26,203 / 11885.50 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.21 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 240 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 11.54 / 3.52 |
Firebox Area (sq ft / m2) | 116 / 10.78 |
Grate Area (sq ft / m2) | 16 / 1.49 |
Evaporative Heating Surface (sq ft / m2) | 1556 / 144.61 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1556 / 144.61 |
Evaporative Heating Surface/Cylinder Volume | 246.59 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 3200 |
Same as above plus superheater percentage | 3200 |
Same as above but substitute firebox area for grate area | 23,200 |
Power L1 | 5078 |
Power MT | 399.82 |