Data from Clinch 1943ca Locomotive Diagrams book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange and from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 28, p. 115. Works numbers were 27071-27072 in December 1905.
Although positioned squarely in the middle of Consolidation size and power for the first few years of the 20th Century and seemingly well-suited to the drag-freight duties performed by most Clinchfield locomotives, this pair of Consolidations was converted in 1917 to 0-8-0 switchers. So altered, they operated on the Clinch until their scrapping in September 1938.
Data from Clinch 1943ca Locomotive Diagrams book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. See also DeGolyer, Volume 32, p. 25. Baldwin works numbers 33135-33140, 33151-33153, 33156-33158 in January 1909 and 33181, 33187-33188 in February.
The Clinchfield favored larger freight locomotives and had a disproportionate number of articulateds to handle the long coal drags that were the railroad's mainstay business. There were shorter, lighter freights to handle, though, and the Clinch bought this batch of Consolidations as its largest single purchase ever soon after the railroad opened under the CC & O banner. Equipped with a sizable boiler and firebox (the latter with 28 sq ft/2.6 sq m of arch tubes), medium-sized drivers for a 2-8-0, and 12" (305 mm) piston valves, the class remained essentially unchanged throughout its career.
Two were sold -- 314 in October 1937 to Sloss Sheffield Steel Company as their #28, and 309 in May 1941 to American Rolling Mill Company. The others were scrapped in July 1951 (312), December 1951 (300-303, 307-308, 310-311, 313), and September 1953 (304-306)).
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | 51 / H-3 | H-4 |
Locobase ID | 11056 | 9156 |
Railroad | South & Western (Clinchfield) | Carolina, Clinchfield & Ohio (Clinchfield) |
Country | USA | USA |
Whyte | 2-8-0 | 2-8-0 |
Number in Class | 2 | 15 |
Road Numbers | 51-52 | 300-314 |
Gauge | Std | Std |
Number Built | 2 | 15 |
Builder | Baldwin | Baldwin |
Year | 1905 | 1909 |
Valve Gear | Walschaert | Walschaert |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 14.25 / 4.34 | 16 / 4.88 |
Engine Wheelbase (ft / m) | 22.83 / 6.96 | 24.50 / 7.47 |
Ratio of driving wheelbase to overall engine wheelbase | 0.62 | 0.65 |
Overall Wheelbase (engine & tender) (ft / m) | 59.62 / 18.17 | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 50,950 / 23,111 | |
Weight on Drivers (lbs / kg) | 163,000 / 73,936 | 178,680 / 81,048 |
Engine Weight (lbs / kg) | 178,000 / 80,740 | 199,150 / 90,333 |
Tender Loaded Weight (lbs / kg) | 120,000 / 54,431 | 150,000 / 68,039 |
Total Engine and Tender Weight (lbs / kg) | 298,000 / 135,171 | 349,150 / 158,372 |
Tender Water Capacity (gals / ML) | 6000 / 22.73 | 7500 / 28.41 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 15 / 14 | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 68 / 34 | 74 / 37 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 51 / 1295 | 57 / 1448 |
Boiler Pressure (psi / kPa) | 200 / 1380 | 190 / 1310 |
High Pressure Cylinders (dia x stroke) (in / mm) | 21" x 28" / 533x711 | 22" x 32" / 559x813 |
Tractive Effort (lbs / kg) | 41,160 / 18669.88 | 43,883 / 19905.02 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.96 | 4.07 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 300 - 2.25" / 57 | 412 - 2" / 0 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 13.83 / 4.22 | 15.25 |
Firebox Area (sq ft / m2) | 200 / 18.59 | 220 |
Grate Area (sq ft / m2) | 37 / 3.44 | 54 / 5.02 |
Evaporative Heating Surface (sq ft / m2) | 2630 / 244.42 | 3482 / 323.61 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 2630 / 244.42 | 3482 / 323.61 |
Evaporative Heating Surface/Cylinder Volume | 234.40 | 247.30 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 7400 | 10,260 |
Same as above plus superheater percentage | 7400 | 10,260 |
Same as above but substitute firebox area for grate area | 40,000 | 41,800 |
Power L1 | 5500 | 5874 |
Power MT | 297.56 | 289.90 |