Data from "Pacific [sic] Type Engine Built at Lima", Railway and Locomotive Engineering, Volume XVIII [18], No 8 (August 1905), p. 347. Works number was 1009 in May 1905.
Although the R&LE report makes some obvious errors, the description otherwise seems reliable. This logging Prairie could burn either coal or wood and had a flared, spark-arresting stack ahead of two closely spaced domes (sand and steam). Only the middle set of drivers, which took the main rod thrust, were flanged. Front and rear driver sets had 6" (152 mm) wide tires.
At the time of the 1's arrival, the RR&G was owned by Crowell & Spencer Lumber Company. The engine would remain with the logger until it was sold to the Meridian Lumber Company as their #1. Meridian sold the 1 to Fordyce Lumber Company in 1929 to run on the Fordyce & Princeton.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 16339 |
| Railroad | Red River & Gulf |
| Country | USA |
| Whyte | 2-6-2 |
| Number in Class | 1 |
| Road Numbers | 1 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Lima |
| Year | 1905 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 9.17 / 2.80 |
| Engine Wheelbase (ft / m) | 23.75 / 7.24 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.39 |
| Overall Wheelbase (engine & tender) (ft / m) | 47.17 / 14.38 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 60,800 / 27,578 |
| Engine Weight (lbs / kg) | 84,000 / 38,102 |
| Tender Loaded Weight (lbs / kg) | 79,000 / 35,834 |
| Total Engine and Tender Weight (lbs / kg) | 163,000 / 73,936 |
| Tender Water Capacity (gals / ML) | 3000 / 15.15 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | / 4 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 46 / 1168 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 20" / 381x508 |
| Tractive Effort (lbs / kg) | 14,967 / 6788.93 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.06 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 148 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.87 / 3.62 |
| Firebox Area (sq ft / m2) | 75.60 / 7.02 |
| Grate Area (sq ft / m2) | 14.12 / 1.31 |
| Evaporative Heating Surface (sq ft / m2) | 994 / 92.34 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 994 / 92.34 |
| Evaporative Heating Surface/Cylinder Volume | 243.03 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2542 |
| Same as above plus superheater percentage | 2542 |
| Same as above but substitute firebox area for grate area | 13,608 |
| Power L1 | 4629 |
| Power MT | 503.55 |