New Orleans Great Northern 4-4-0 "American" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 101 (Locobase 6908)

Data from 1928 NOGN Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also DeGolyer, Volume 28, p. 294 and Baldwin Locomotive Company, Record of Recent Construction, Nuber 59 (Philadelphia, Pa, 1906), pp. 18-19. Works numbers were 28335, 28339-28340 in June 1906; and 29933-29934, 30016 in January 1907.

Locobase also was suspicious of the builder's date, but Drury (1993) shows the same figure. The NOGN diagram also reveals that the unit cost for this class ranged from $13,462.29 for 106 (love the precision of the 29 cents) to $13,728.25 for 104. Baldwin's Recent Record of Construction's photo reveals that the NOGN described itself as the "Ozone Route" on its tender., it's bottlenecked boiler and extended smokebox. The specs reveal that although the safety valve setting was specified as 200 psi, the engines were actually run at 180 psi.

They seem to have left service soon after the NOGN's absorption by the GM&N.

Specifications by Steve Llanso of Sweat House Media
Locobase ID6908
RailroadNew Orleans Great Northern (GM&O)
Number in Class6
Road Numbers101-106
Number Built6
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 8.50'
Engine Wheelbase22.58'
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender)49.75'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers83680 lbs
Engine Weight124420 lbs
Tender Light Weight100000 lbs
Total Engine and Tender Weight224420 lbs
Tender Water Capacity5000 gals
Tender Fuel Capacity (oil/coal)11 tons
Minimum weight of rail (calculated)70 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter69"
Boiler Pressure180 psi
Cylinders (dia x stroke)19" x 24"
Tractive Effort19211 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.36
Heating Ability
Firebox Area133 sq. ft
Grate Area25.90 sq. ft
Evaporative Heating Surface1866 sq. ft
Superheating Surface
Combined Heating Surface1866 sq. ft
Evaporative Heating Surface/Cylinder Volume236.93
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4662
Same as above plus superheater percentage4662
Same as above but substitute firebox area for grate area23940
Power L16652
Power MT350.51

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