New Orleans Southern 4-4-0 "American" Locomotives in 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.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID13495
RailroadNew Orleans Southern
Number in Class2
Road Numbers8
Number Built2
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)8 / 2.44
Engine Wheelbase (ft / m)21.75 / 6.63
Ratio of driving wheelbase to overall engine wheelbase 0.37
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)48,000 / 21,772
Engine Weight (lbs / kg)75,000 / 34,019
Tender Loaded Weight (lbs / kg)59,000 / 26,762
Total Engine and Tender Weight (lbs / kg)134,000 / 60,781
Tender Water Capacity (gals / ML)2800 / 10.61
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)40 / 20
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)63 / 1600
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)15" x 24" / 381x610
Tractive Effort (lbs / kg)11,657 / 5287.53
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.12
Heating Ability
Tubes (number - dia) (in / mm)159 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.81 / 3.29
Firebox Area (sq ft / m2)100 / 9.38
Grate Area (sq ft / m2)15.50 / 1.44
Evaporative Heating Surface (sq ft / m2)1000 / 93
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1000 / 93
Evaporative Heating Surface/Cylinder Volume203.67
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 L15132
Power MT471.42

All material Copyright ©
Wes Barris