Data from "Logging Locomotives", Record of Recent Construction #96 (Baldwin Locomotive Works, 1918), p. 28-29. See also DeGolyer, Volume 52, pp. 380+. (Thanks to Chris Hohl for a 31 March 2015 email questioning the ownership of this locomotive that led to a clarification of its operating history.) Works number was 43561 in June 1916.
Delivered to the Arizona Lumber Company in Flagstaff, Ariz, this medium-sized Mikado had a tough assignment, but at least the profile seemed reasonable. The AL&T's Central Arizona Railway had 25 miles (40.25 km) of 56 lb/yard (28 kg/metre) track, maximum grades of 3% on spurs and average grades of 1 1/2% to 2% and 20 degree curves. According to the specs, the 1 typically would "run 20 miles [32 km] in forward motion, then turn and run in backward motion from 3 to 8 miles [4.8-12.9 km] each trip, and will make two trips in ten hours, or say 110 miles [177 km] in ten hours."
But the 1 proved too heavy for the line, so ALC returned it and Baldwin sold it to the Saint Louis, Troy & Eastern. (See Locobase 12512 for a short description of the SLT&E.)
By 1928, it had been sold to locomotive rebuilder Georgia Car & Locomotive, which then sold it back to the Illinois Terminal, with which the SLT & E had merged in 1925.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 11016 |
| Railroad | Arizona Lumber & Timber |
| Country | USA |
| Whyte | 2-8-2 |
| Number in Class | 1 |
| Road Numbers | 1 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1916 |
| Valve Gear | Southern |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13 / 3.96 |
| Engine Wheelbase (ft / m) | 27.83 / 8.48 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.47 |
| Overall Wheelbase (engine & tender) (ft / m) | 58.50 / 17.83 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 134,600 / 61,054 |
| Engine Weight (lbs / kg) | 174,000 / 78,925 |
| Tender Loaded Weight (lbs / kg) | 111,000 / 50,349 |
| Total Engine and Tender Weight (lbs / kg) | 285,000 / 129,274 |
| Tender Water Capacity (gals / ML) | 5500 / 20.83 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2000 / 7570 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 56 / 28 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 170 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 28" / 508x711 |
| Tractive Effort (lbs / kg) | 33,717 / 15293.79 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.99 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 350 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 16.50 / 5.03 |
| Firebox Area (sq ft / m2) | 158 / 14.68 |
| Grate Area (sq ft / m2) | 41.30 / 3.84 |
| Evaporative Heating Surface (sq ft / m2) | 3166 / 294.24 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 3166 / 294.24 |
| Evaporative Heating Surface/Cylinder Volume | 311.00 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 7021 |
| Same as above plus superheater percentage | 7021 |
| Same as above but substitute firebox area for grate area | 26,860 |
| Power L1 | 5285 |
| Power MT | 346.25 |
