Ashland Coal & Iron 2-6-2 "Prairie" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 14 (Locobase 13957)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 43, p. 300. See also Locobase 13082 for a description of Georgia Marble's business. Works number was 39340 in February 1913.

Authorized as the Lexington & Big Sandy in January 1865 to mine a four-foot vein of coal along the Williams Creek, this raw-materials carrier took its later name in 1880. A 1908 history of Kentucky describes the "millions of tons" of coal that came out over the years as of the "best quality".

The AC & I spared little expense in building its railroad in Kentucky or so the specifications suggest. Maximum grades were held to an unusually gentle 1% (52 feet in the mile) and the rail weighed 90 lb/yard (45 kg/metre). It intended the 14 for freight and switcher duty.

When the AC & I was closed in 1924, they sold the 14 to locomotive/rebuilder Birmingham Rail & Locomotive. That July, BR & L sold the engine to another rebuilder/reseller Georgia Car & Locomotive, who found a buyer in July 1924 in Georgia Marble Company of Tate, Georgia, who gave their new engine #5. It joined the 4, a Mogul bought new by GMC in 1907.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID13957
RailroadAshland Coal & Iron
Number in Class1
Road Numbers14
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.50 / 2.90
Engine Wheelbase (ft / m)24.50 / 7.47
Ratio of driving wheelbase to overall engine wheelbase 0.39
Overall Wheelbase (engine & tender) (ft / m)50.67 / 15.44
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)119,000 / 53,978
Engine Weight (lbs / kg)152,000 / 68,946
Tender Loaded Weight (lbs / kg)100,000 / 45,359
Total Engine and Tender Weight (lbs / kg)252,000 / 114,305
Tender Water Capacity (gals / ML)5000 / 18.94
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)8 / 7
Minimum weight of rail (calculated) (lb/yd / kg/m)66 / 33
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51 / 1295
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)20" x 24" / 508x610
Tractive Effort (lbs / kg)28,800 / 13063.48
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.13
Heating Ability
Tubes (number - dia) (in / mm)276 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)14 / 4.27
Firebox Area (sq ft / m2)124 / 11.52
Grate Area (sq ft / m2)34 / 3.16
Evaporative Heating Surface (sq ft / m2)2135 / 198.35
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2135 / 198.35
Evaporative Heating Surface/Cylinder Volume244.56
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6120
Same as above plus superheater percentage6120
Same as above but substitute firebox area for grate area22,320
Power L14828
Power MT268.33

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Wes Barris