901 & 902 pulled both passenger and freight trains; 902 (works #70336) came in 1945. http://www.alaskarails.org/pix/former-loco/JK-901.html (1 Feb 2004) tells us that even though 901 (Baldwin works number 62515) was one of two locomotives involved in the only head-on collision the road ever had (on 19 October 1943), it carried on until 1952, when it was sold to FC Langreo in Spain.
| Specifications | |
|---|---|
| Class | 901 |
| Locobase ID | 5095 |
| Railroad | Alaska Railroad |
| Whyte | 4-6-2 |
| Road Numbers | 901-902 |
| Gauge | Std |
| Builder | Baldwin |
| Year | 1941 |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase | 12' |
| Engine Wheelbase | 34.50' |
| Ratio of driving wheelbase to overall engine wheebase | 0.35 |
| Overall Wheelbase (engine & tender) | 69.29' |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 156200 lbs |
| Engine Weight | 249000 lbs |
| Tender Light Weight | 200300 lbs |
| Total Engine and Tender Weight | 449300 lbs |
| Tender Water Capacity | 10000 gals |
| Tender Fuel Capacity (oil/coal) | 14 tons |
| Minimum weight per yard of rail on which locomotive could run | 86.78 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 69" |
| Boiler Pressure | 200 psi |
| Cylinders (dia x stroke) | 22" x 28" |
| Tractive Effort | 33389 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.68 |
| Heating Ability | |
| Firebox Area | |
| Grate Area | 63 sq. ft |
| Evaporative Heating Surface | 2660 |
| Superheating Surface | 646 |
| Combined Heating Surface | 3306 |
| Evaporative Heating Surface/Cylinder Volume | 215.92 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 12600 |
| Same as above plus superheater percentage | 15062.07 |
| Same as above but substitute firebox area for grate area | 0 |
| Power L1 | 0 |
| Power MT | 0 |
| This page last modified: . | [Contact] | All material © 1999-2008 SteamLocomotive.com |
