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
Class101
Locobase ID6908
RailroadNew Orleans Great Northern (GM&O)
CountryUSA
Whyte4-4-0
Number in Class6
Road Numbers101-106
GaugeStd
Number Built6
BuilderBurnham, Williams & Co
Year1907
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft) 8.50
Engine Wheelbase (ft)22.58
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender) (ft)49.75
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)83,680
Engine Weight (lbs)124,420
Tender Loaded Weight (lbs)100,000
Total Engine and Tender Weight (lbs)224,420
Tender Water Capacity (gals)5000
Tender Fuel Capacity (oil/coal) (gals/tons)11
Minimum weight of rail (calculated) (lb/yd)70
Geometry Relating to Tractive Effort
Driver Diameter (in)69
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)19" x 24"
Tractive Effort (lbs)19,211
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.36
Heating Ability
Firebox Area (sq ft)133
Grate Area (sq ft)25.90
Evaporative Heating Surface (sq ft)1866
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1866
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 area23,940
Power L16652
Power MT350.51


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