Louisiana & Pine Bluff 2-8-2 "Mikado" Locomotives in the USA
Class Details by Steve Llanso of Sweat House Media
Class 11 (Locobase 11015)
Data from "Logging Locomotives", Record of Recent Construction #96 (Baldwin Locomotive Works, 1918), p. 28-29. See also DeGolyer, Volume 62, pp. 335+. See also "A Graphic Story of the Frost-Trigg Interests in Louisiana, Arkansas and Texas", American Lumberman, March 30, 1907. Chicago: American Lumberman, 1907. pp. 51-114, in the Texas Transportation Archive at [
], last accessed 8 July 2021.Works number was 51922 in June 1919.
This locomotive was essentially identical to the East Oregon locomotive shown in Locobase 11014, but went to work on the Louisiana & Pine Bluff Railway, a Frost-Johnson subsidiary. The L&PB connected the Frost-Johnson's Union Sawmill plant at Huttig, Ark with the Missouri Pacific, a distance of 1.9 miles (3 km), at its Dollar Junction, Ark.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 11 |
| Locobase ID | 11015 |
| Railroad | Louisiana & Pine Bluff |
| Country | USA |
| Whyte | 2-8-2 |
| Number in Class | 1 |
| Road Numbers | 11 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1919 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 12.08 / 3.68 |
| Engine Wheelbase (ft / m) | 27.25 / 8.31 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.44 |
| Overall Wheelbase (engine & tender) (ft / m) | 51.96 / 15.84 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 113,050 / 51,279 |
| Engine Weight (lbs / kg) | 143,400 / 65,045 |
| Tender Loaded Weight (lbs / kg) | 90,000 / 40,823 |
| Total Engine and Tender Weight (lbs / kg) | 233,400 / 105,868 |
| Tender Water Capacity (gals / ML) | 4500 / 17.05 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2000 / 7570 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 47 / 23.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 |
| Tractive Effort (lbs / kg) | 27,039 / 12264.70 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.18 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 291 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13 / 3.96 |
| Firebox Area (sq ft / m2) | 143 / 13.29 |
| Grate Area (sq ft / m2) | 25.50 / 2.37 |
| Evaporative Heating Surface (sq ft / m2) | 2111 / 196.19 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 2111 / 196.19 |
| Evaporative Heating Surface/Cylinder Volume | 298.59 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4590 |
| Same as above plus superheater percentage | 4590 |
| Same as above but substitute firebox area for grate area | 25,740 |
| Power L1 | 5276 |
| Power MT | 411.56 |