Eastern & Western Lumber Company 2-6-2 "Prairie" Locomotives in 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.

Principal Dimensions by Steve Llanso of Sweat House Media
Class12
Locobase ID11,492 12,959
RailroadEastern & Western Lumber CompanyEastern & Western Lumber Company
CountryUSAUSA
Whyte2-6-2T2-6-2
Number in Class11
Road Numbers12
Gauge3'Std
Number Built11
BuilderBurnham, Williams & CoBurnham, Williams & Co
Year19041906
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.50 / 2.9010 / 3.05
Engine Wheelbase (ft / m)21 / 6.4024.75 / 7.54
Ratio of driving wheelbase to overall engine wheebase 0.45 0.40
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)82,000 / 37,195100,500 / 45,586
Engine Weight (lbs / kg)103,000 / 46,720138,000 / 62,596
Tender Loaded Weight (lbs / kg)50,000 / 22,68060,000 / 27,216
Total Engine and Tender Weight (lbs / kg)153,000 / 69,400198,000 / 89,812
Tender Water Capacity (gals / ML)2500 / 9.473000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)46 / 2356 / 28
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)38 / 96544 / 1118
Boiler Pressure (psi / kPa)180 / 12.40180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)15" x 20" / 381x50817" x 24" / 432x610
Tractive Effort (lbs / kg)18,118 / 8218.2024,118 / 10939.75
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.53 4.17
Heating Ability
Firebox Area (sq ft / m2)70.90 / 6.59106 / 9.85
Grate Area (sq ft / m2)18.40 / 1.7123.30 / 2.17
Evaporative Heating Surface (sq ft / m2)1390 / 129.182378 / 221
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1390 / 129.182378 / 221
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 area12,76219,080
Power L148626088
Power MT392.15400.65