Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 39, p. 46. Works number was 37269 in November 1911.
The K & T took account of its 3% grades that included 16-degree curves, compensated, the maximum curves of 24 degrees, and its rail weights of 60 lb/yard and specified this low-drivered Prairie. The order required the 8 to haul 204 short tons up the 3% grade.
One of its primary duties was to head the passenger train that connected Stearns with Cooperative (13 miles each way) and served the miners who got out the coal in the latter location. After more than 4 decades, the 8 was scrapped in 1951.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 8 |
| Locobase ID | 13816 |
| Railroad | Kentucky & Tennessee |
| Country | USA |
| Whyte | 2-6-2 |
| Number in Class | 1 |
| Road Numbers | 8 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1911 |
| Valve Gear | Stephenson |
| 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) | 48.82 / 14.88 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 110,000 / 49,895 |
| Engine Weight (lbs / kg) | 140,000 / 63,503 |
| Tender Loaded Weight (lbs / kg) | 90,000 / 40,823 |
| Total Engine and Tender Weight (lbs / kg) | 230,000 / 104,326 |
| Tender Water Capacity (gals / ML) | 4500 / 17.05 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 61 / 30.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 51 / 1295 |
| Boiler Pressure (psi / kPa) | 170 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 24" / 508x610 |
| Tractive Effort (lbs / kg) | 27,200 / 12337.73 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.04 |
| 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 Volume | 244.56 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5780 |
| Same as above plus superheater percentage | 5780 |
| Same as above but substitute firebox area for grate area | 21,080 |
| Power L1 | 4560 |
| Power MT | 274.17 |