Albion Lumber Company / Alger Logging Company / Algoma Lumber Company 2-6-2 "Prairie" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 11730)

Data from Negative 2137, Southern Methodist University, Central University Libraries, DeGolyer Library collection of digitized Baldwin images, retrieved 26 October 2010 from http://digitalcollections.smu.edu/cdm4/item_viewer.php . Works number was 27711 in March 1906.

ALC bought out the Samish Logging Company near Lookout, Washington (soon to be renamed after Hollis Alger) in 1886 and soon grew into one of the largest lumber companies in the Northwest. This Prairie had the cabbage stack of a wood burner and operated for the ALC for more than 30 years before being scrapped in


Class 2 (Locobase 14307)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 52, p. 348. Works number was 42102 in May 1915.

This logging Prairie tank represents an unusual variation on the usual 2-6-2 wood-train product that Baldwin sold to dozens of lumber companies. Its operating environment in the Oregon forests wasn't much different from the usual scene: 56-60 lb/yard (28-30 kg/metre) rail, grades of 3 1/2-4% and curves of 25 degrees (231 feet/70.4 metre radii). The shorter wheelbase concentrated a bit more adhesion weight on the track, but the engine still was a wood-burning double ender.

The ALC was open from 1903 to 1943, at which point the 2 was converted to a separate-tender 2-6-2 and sold to the US Army. The Army at first designated it L4, later 6908.


Class 5 (Locobase 13314)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 32, p. 17. Works number was 33094 in December 1908.

By the time the ALC bought this wood-burning Prairie tank from Baldwin, the Mendocino County (Calif) timber company was owned by the Southern Pacific as part of its network of Redwood Country railroad holdings. The 5 operated for the company until its railway was abandoned in 1931. The rails and the 5 were scrapped in 1937.

Principal Dimensions by Steve Llanso of Sweat House Media
Class225
Locobase ID11,730 14,307 13,314
RailroadAlger Logging CompanyAlgoma Lumber CompanyAlbion Lumber Company
CountryUSAUSAUSA
Whyte2-6-22-6-2T2-6-2T
Number in Class111
Road Numbers225
GaugeStdStdStd
Number Built111
BuilderBaldwinBaldwinBurnham, Williams & Co
Year190619071908
Valve GearWalschaertStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.17 / 2.80 9.25 / 2.82 8.33 / 2.54
Engine Wheelbase (ft / m)23.50 / 7.1621.67 / 6.6122.50 / 6.86
Ratio of driving wheelbase to overall engine wheebase 0.39 0.43 0.37
Overall Wheelbase (engine & tender) (ft / m)43.54 / 13.2721.67 / 6.6122.50 / 6.86
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)60,130 / 27,27590,400 / 41,00585,000 / 38,555
Engine Weight (lbs / kg)86,230 / 39,113124,550 / 56,495119,000 / 53,978
Tender Loaded Weight (lbs / kg)53,770 / 24,390
Total Engine and Tender Weight (lbs / kg)140,000 / 63,503124,550119,000
Tender Water Capacity (gals / ML)2500 / 9.471600 / 6.061500 / 5.68
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)33 / 16.5050 / 2547 / 23.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 106744 / 111847 / 1194
Boiler Pressure (psi / kPa)160 / 11160 / 11160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)14" x 22" / 356x55917" x 24" / 432x61017" x 22" / 432x559
Tractive Effort (lbs / kg)13,963 / 6333.5221,439 / 9724.5818,398 / 8345.20
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.31 4.22 4.62
Heating Ability
Firebox Area (sq ft / m2)87.90 / 8.17103 / 9.5791.60 / 8.51
Grate Area (sq ft / m2)13.30 / 1.2414 / 1.3014.40 / 1.34
Evaporative Heating Surface (sq ft / m2)1082 / 100.561224 / 113.711099 / 102.10
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1082 / 100.561224 / 113.711099 / 102.10
Evaporative Heating Surface/Cylinder Volume276.04194.13190.15
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation212822402304
Same as above plus superheater percentage212822402304
Same as above but substitute firebox area for grate area14,06416,48014,656
Power L1434732363376
Power MT478.14236.75262.69