Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 45, p. 226. Works number was 38807 in November 1912.
TO&E had stocked its motive power roster with a new low-drivered Prairie (Locobase 14123), two more from parent DeQueen & Eastern (11748 ), a relatively large 2-8-2 (Locobase 14124) when it ordered this smaller Mikado.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 43, p. 224. Works number was 38094 in August 1912.
Beefing up the motive power of the DeQueen & Eastern's western extension, this middle-sized, saturated-boiler Mikado went to work in late 1912.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 225 | 375 |
| Locobase ID | 14125 | 14124 |
| Railroad | Texas, Oklahoma & Eastern | Texas, Oklahoma & Eastern |
| Country | USA | USA |
| Whyte | 2-8-2 | 2-8-2 |
| Number in Class | 1 | 1 |
| Road Numbers | 225 | 375 |
| Gauge | Std | Std |
| Number Built | 1 | 1 |
| Builder | Baldwin | Baldwin |
| Year | 1912 | 1912 |
| Valve Gear | Walschaert | Walschaert |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 12.08 / 3.68 | 13.08 / 3.99 |
| Engine Wheelbase (ft / m) | 27.25 / 8.31 | 27 / 8.23 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.44 | 0.48 |
| Overall Wheelbase (engine & tender) (ft / m) | 51.06 / 15.56 | 58.01 / 17.68 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 111,000 / 50,349 | 134,000 / 60,781 |
| Engine Weight (lbs / kg) | 136,000 / 61,689 | 173,000 / 78,472 |
| Tender Loaded Weight (lbs / kg) | 80,000 / 36,287 | 100,000 / 45,359 |
| Total Engine and Tender Weight (lbs / kg) | 216,000 / 97,976 | 273,000 / 123,831 |
| Tender Water Capacity (gals / ML) | 4000 / 15.15 | 5000 / 18.94 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 7 / 6 | 2000 / 7570 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 46 / 23 | 56 / 28 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 44 / 1118 | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 180 / 1240 | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 | 20" x 28" / 508x711 |
| Tractive Effort (lbs / kg) | 27,039 / 12264.70 | 35,700 / 16193.27 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.11 | 3.75 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 263 - 2" / 51 | 350 - 2" / 51 |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 13 / 3.96 | 16.50 / 5.03 |
| Firebox Area (sq ft / m2) | 140 / 13.01 | 158 / 14.68 |
| Grate Area (sq ft / m2) | 25.50 / 2.37 | 41.30 / 3.84 |
| Evaporative Heating Surface (sq ft / m2) | 1918 / 178.19 | 3166 / 294.24 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 1918 / 178.19 | 3166 / 294.24 |
| Evaporative Heating Surface/Cylinder Volume | 271.29 | 311.00 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 4590 | 7434 |
| Same as above plus superheater percentage | 4590 | 7434 |
| Same as above but substitute firebox area for grate area | 25,200 | 28,440 |
| Power L1 | 4888 | 5596 |
| Power MT | 388.33 | 368.27 |
