Eastern & Western Lumber Company 2-6-2 "Prairie" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 11492)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 26, p. 274. Works number was 24009 in March 1904.

According to the order book, this wood-burning Prairie was ordered for the 3-foot gauge but "Changed to 4' 8 1/2" by E & W L Co.". Connelly shows the engine as a tank locomotive, but the specs show an 8-wheel tender. Also, references documented the E & W said they always ran on 3-ft gauge, 56-lb track. So Locobase supposes that the 1 was convertible to standard gauge, but never actually so transformed.

E & W was based in Eufala, Wash and maintained its lumber road until 1926. The #1 was scrapped in 1929.

Class 2 (Locobase 12959)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 29, p. 54 . Works number was 27780 in March 1906.

Locobase 11492 notes a gauge confusion regarding an earlier E & W Lumber Company engine, in which it is supposed that the 1904 tank was convertible to the 4' 8 1/2" gauge but never actually so modified. So what are we to make of this much larger wood-burning tender engine? It has a big boiler, but a small grate and firebox and logging-road sized drivers.

In any case, the engine faced 36-deg (159-ft radius) curves and 5 1/2% grades. Based in Eufala, Wash, the 2 served the E & W until it was scrapped.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11492 12959
RailroadEastern & Western Lumber CompanyEastern & Western Lumber Company
Number in Class11
Road Numbers12
Number Built11
BuilderBurnham, Williams & CoBurnham, Williams & Co
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase 9.50'10'
Engine Wheelbase21'24.75'
Ratio of driving wheelbase to overall engine wheebase 0.45 0.40
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers82000 lbs100500 lbs
Engine Weight103000 lbs138000 lbs
Tender Light Weight50000 lbs60000 lbs
Total Engine and Tender Weight153000 lbs198000 lbs
Tender Water Capacity2500 gals3000 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)46 lb/yard56 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter38"44"
Boiler Pressure180 psi180 psi
Cylinders (dia x stroke)15" x 20"17" x 24"
Tractive Effort18118 lbs24118 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.53 4.17
Heating Ability
Firebox Area70.90 sq. ft106 sq. ft
Grate Area18.40 sq. ft23.30 sq. ft
Evaporative Heating Surface1390 sq. ft2378 sq. ft
Superheating Surface
Combined Heating Surface1390 sq. ft2378 sq. ft
Evaporative Heating Surface/Cylinder Volume339.80377.16
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation33124194
Same as above plus superheater percentage33124194
Same as above but substitute firebox area for grate area1276219080
Power L148626088
Power MT392.15400.65

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