New Orleans Southern 4-4-0 "American" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 8 (Locobase 13495)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 32, p. 312. Works number was 33015 in October 1908.

The NOS was a short line that headed south from New Orleans into the Delta. In 1908, it leased the New Orleans, Fort Jackson & Grand Isle, which began service in 1891 and ran south to Buras, La some 60 miles away. The two merged in 1911 and took the name New Orleans Southern & Grand Isle. At this time, the NOS & GI had its own station in New Orleans.

Financial struggles led to receivership and the railroad was sold in 1916 to the New Orleans & Lower Coast, which came under Missouri Pacific control in 1926.

NB: All heating surface areas are estimates. They are based on the known figures given in the Baldwin specfications for the Western Railways of Havana engine 21 of 1893 described in Locobase 12074, which had the same tube count and lengths only 1/2" longer and a firebox whose length was 3/16" shorter, 3/8" narrower, and a depth at the rear only 1/2" less.

Specifications by Steve Llanso of Sweat House Media
Locobase ID13,495
RailroadNew Orleans Southern
Number in Class2
Road Numbers8
Number Built2
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)8
Engine Wheelbase (ft)21.75
Ratio of driving wheelbase to overall engine wheebase 0.37
Overall Wheelbase (engine & tender) (ft)
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)48,000
Engine Weight (lbs)75,000
Tender Loaded Weight (lbs)59,000
Total Engine and Tender Weight (lbs)134,000
Tender Water Capacity (gals)2800
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)40
Geometry Relating to Tractive Effort
Driver Diameter (in)63
Boiler Pressure (psi)160
High Pressure Cylinders (dia x stroke) (in)15" x 24"
Tractive Effort (lbs)11,657
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.12
Heating Ability
Firebox Area (sq ft)100
Grate Area (sq ft)15.50
Evaporative Heating Surface (sq ft)1000
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1000
Evaporative Heating Surface/Cylinder Volume203.72
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2480
Same as above plus superheater percentage2480
Same as above but substitute firebox area for grate area16,000
Power L15134
Power MT471.60