Norfolk Lumber Company 2-6-2 "Prairie" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 3 (Locobase 13710)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 36. p. 121. (Thanks to Chris Hohl for his 31 December 2014 email giving the tender fuel capacity and his March 2015 email noting Locobase's typographic doubling of that figure. ) Works number was 35506 in November 1910.

After some years on this logging road, the wood-burning (tender capacity of 3 cords) 3 was sold to Camp Manufacturing as their #30

Specifications by Steve Llanso of Sweat House Media
Locobase ID13710
RailroadNorfolk Lumber Company
Number in Class1
Road Numbers3
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase8'
Engine Wheelbase22.75'
Ratio of driving wheelbase to overall engine wheebase 0.35
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers56000 lbs
Engine Weight77000 lbs
Tender Light Weight50500 lbs
Total Engine and Tender Weight127500 lbs
Tender Water Capacity2500 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)31 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter44"
Boiler Pressure160 psi
Cylinders (dia x stroke)13" x 22"
Tractive Effort11492 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.87
Heating Ability
Firebox Area74 sq. ft
Grate Area13.30 sq. ft
Evaporative Heating Surface767 sq. ft
Superheating Surface
Combined Heating Surface767 sq. ft
Evaporative Heating Surface/Cylinder Volume226.94
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2128
Same as above plus superheater percentage2128
Same as above but substitute firebox area for grate area11840
Power L13947
Power MT466.16

If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.