Graysonia, Nashville & Ashdown 2-6-0 "Mogul" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 26 (Locobase 15341)

Data from DeGolyer, Volume 77, pp. 790+. See also Locobase 6636 for a history of predecessor Memphis, Paris & Gulf and of the GN&A itself and "Graysonia, Nashville & Ashdown Railroad", in Richard Parks "Passenger Railroad Index -1930's-1940's" website at http://www.r2parks.net/GN&A.html. Works number was 59532 in September 1926.

The GN&A linked Ashdown, Arkansas's junction with the Frisco with the Missouri Pacific and Murfreesboro, Nashville & Southwestern at Nashville. Piston valves measuring 9 1/2" (241 mm) admitted steam to the cylinders. Its Vanderbilt tender had a cubic coal bunker ahead of the cylindrical water tank.

The 26 continued to serve the GN&A until the line converted to diesels in 1951. It then went to the more grandly named Nebraska Kansas Railroad in Superior, Neb. After that line sidetracked it in 1958, it was bought by W Calgren for display in Concordia, Kan in 1960.

By 1973, the 26 had been moved to Union, IL, where it joined the Illinois Railroad Museum roster. Long-standing plans to repair the firebox remained unfunded.

Specifications by Steve Llanso of Sweat House Media
Class26
Locobase ID15,341
RailroadGraysonia, Nashville & Ashdown
CountryUSA
Whyte2-6-0
Number in Class1
Road Numbers26
GaugeStd
Number Built1
BuilderBaldwin
Year1920
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft)12
Engine Wheelbase (ft)20.25
Ratio of driving wheelbase to overall engine wheebase 0.59
Overall Wheelbase (engine & tender) (ft)49.40
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)105,000
Engine Weight (lbs)123,000
Tender Loaded Weight (lbs)100,000
Total Engine and Tender Weight (lbs)223,000
Tender Water Capacity (gals)5000
Tender Fuel Capacity (oil/coal) (gals/tons)8
Minimum weight of rail (calculated) (lb/yd)58
Geometry Relating to Tractive Effort
Driver Diameter (in)54
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)19" x 24"
Tractive Effort (lbs)24,548
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.28
Heating Ability
Firebox Area (sq ft)132
Grate Area (sq ft)26
Evaporative Heating Surface (sq ft)1622
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1622
Evaporative Heating Surface/Cylinder Volume205.95
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4680
Same as above plus superheater percentage4680
Same as above but substitute firebox area for grate area23,760
Power L14694
Power MT295.67


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