New Orleans & Northwestern 4-6-0 "Ten-Wheeler" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 11720)

Data from Baldwin Locomotive Works Specification for Engines, 1890, as digitized by the DeGolyer Library of Southern Methodist University Vol 16, p. 176. Works number was 11795 in April 1891.

This small Ten-wheeler was originally purchased by the Huntsville, Belt Line & Monte Sano of Huntsville, Ala, a railway that couldn't afford to pay for it. It was instead delivered to the Natchez, MS-based NO & NW in November 1891.

5 served several lumber-company railroad in its long career. It was sold to the Tensas River Lumber Company of Moreau, Louisiana and later to the Wildsville, La firm of Baxter Lumber. In April 1916, Baxter sold the engine to engine rebuilder/reseller Southern Iron & Equipment, who sold it to Poplarville Saw Mill Company in December. In May 1919, the PSMC put it up for sale and found a Mississippi buyer in the Swift Lumber Company in April 1920. Later operators included Colmer-Green Lumber Company of Colgreen, MS and the Barnes-Creary Supply Company of Mobile, AL.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID11720
RailroadNew Orleans & Northwestern
Number in Class1
Road Numbers5
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.25 / 2.21
Engine Wheelbase (ft / m)17 / 5.18
Ratio of driving wheelbase to overall engine wheelbase 0.43
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)64,000 / 29,030
Engine Weight (lbs / kg)80,000 / 36,287
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2400 / 9.09
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)36 / 18
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)40 / 1016
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)16" x 20" / 406x508
Tractive Effort (lbs / kg)14,144 / 6415.62
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.52
Heating Ability
Tubes (number - dia) (in / mm)199 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11 / 3.35
Firebox Area (sq ft / m2)77 / 7.16
Grate Area (sq ft / m2)15.50 / 1.44
Evaporative Heating Surface (sq ft / m2)1223 / 113.66
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1223 / 113.66
Evaporative Heating Surface/Cylinder Volume263.01
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2015
Same as above plus superheater percentage2015
Same as above but substitute firebox area for grate area10,010
Power L12997
Power MT309.71

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