Gates Lumber Company 2-6-2 "Prairie" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 7 (Locobase 13719)

Data from DeGolyer, Volume 36, p. 150. See also The Encyclopedia of Arkansas History and Culture entry on the timber industry at http://encyclopediaofarkansas.net/encyclopedia/entry-detail.aspx?entryID=2143, last accessed 13 January 2012. Works number was 36043 in February 1911.

Locobase cannot establish what the "W & SV" that was to be lettered on the tender might actually have been. Gates Lumber Company was headquartered in Wilmar, Ark. The little logging Prairie in this entry - a standard type sold by Baldwin all over the South and West - wound up working for Crossett Lumber.

Principal Dimensions by Steve Llanso of Sweat House Media
Class7
Locobase ID13,719
RailroadGates Lumber Company (W & SV)
CountryUSA
Whyte2-6-2
Number in Class1
Road Numbers7
GaugeStd
Number Built1
BuilderBaldwin
Year1911
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.17 / 2.80
Engine Wheelbase (ft / m)23.75 / 7.24
Ratio of driving wheelbase to overall engine wheebase 0.39
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)62,000 / 28,123
Engine Weight (lbs / kg)84,000 / 38,102
Tender Loaded Weight (lbs / kg)60,000 / 27,216
Total Engine and Tender Weight (lbs / kg)144,000 / 65,318
Tender Water Capacity (gals / ML)3000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)6 / 5.50
Minimum weight of rail (calculated) (lb/yd / kg/m)34 / 17
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)46 / 1168
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)15" x 20" / 381x508
Tractive Effort (lbs / kg)14,967 / 6788.93
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.14
Heating Ability
Firebox Area (sq ft / m2)82 / 7.62
Grate Area (sq ft / m2)14.10 / 1.31
Evaporative Heating Surface (sq ft / m2)990 / 91.97
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)990 / 91.97
Evaporative Heating Surface/Cylinder Volume242.02
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2538
Same as above plus superheater percentage2538
Same as above but substitute firebox area for grate area14,760
Power L14723
Power MT503.83