This Ten-wheeler was the one mixed-traffic Ten-wheeler on the DNW & P with Walschaert outside radial valve gear. Equipment suppliers included:
Axles Otis Steel
Bell ringer Trojan
Boiler lagging Sectional magnesia
Brick arch American Locomotive Equipment Co.
Fire doors Franklin
Injector Nathan Mfg. Co.
Journal bearings More Jones Co.
Piston and valve rod packing Paxton-Mltchell
Safety valve Ashton
Sanding devices Leach
Sight-feed lubricators Nathan Mfg. Co.
Springs Uallway Steel-Spring Co.
Steam gages Ashton
Steam heat equipment Safety Car Heating & Ltg. Co.
Tubes Worth Bros.
It operated on the railroad (renamed Denver & Salt Lake) until 1948.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Denver, Northwestern & Pacific (D&SL)|
|Number in Class||1|
|Road Numbers||303 / 796|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase|
|Overall Wheelbase (engine & tender)|
|Axle Loading (Maximum Weight per Axle)|
|Weight on Drivers||149000 lbs|
|Engine Weight||200000 lbs|
|Tender Light Weight|
|Total Engine and Tender Weight|
|Tender Water Capacity||7000 gals|
|Tender Fuel Capacity (oil/coal)||10 tons|
|Minimum weight of rail (calculated)||83 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||200 psi|
|Cylinders (dia x stroke)||20.5" x 28"|
|Tractive Effort||31752 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.69|
|Firebox Area||199 sq. ft|
|Grate Area||52.60 sq. ft|
|Evaporative Heating Surface||3253 sq. ft|
|Combined Heating Surface||3253 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||304.12|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||10520|
|Same as above plus superheater percentage||10520|
|Same as above but substitute firebox area for grate area||39800|