Prince (1965) and some data from Southern Railway diagrams hosted on southern.railfan.net/images/archive/southern/steam_loco_diagrams (viewed September 2002)..
Standard light "Mountain" design as conceived for mass
production during World War I by the USRA. These 25 came from Baldwin and Alco-Richmond. Like the Ts and Ps-4 class passenger engines, Ts-1 locomotives were decked in an attractive apple green and gold paint scheme in the late 1920s that the Southern maintained right up to retirement in 1952-1953.
| Specifications | ||
|---|---|---|
| Class | Ts | Ts-1 |
| Locobase ID | 227 | 1429 |
| Railroad | Southern (SRS) | Southern (SRS) |
| Whyte | 4-8-2 | 4-8-2 |
| Road Numbers | 1450-1472 | 1475-1488 |
| Gauge | Std | Std |
| Builder | Baldwin | Several |
| Year | 1917 | 1918 |
| Valve Gear | Walschaert | Baker |
| Locomotive Length and Weight | ||
| Driver Wheelbase | 18' | 18.25' |
| Engine Wheelbase | 38.92' | 40' |
| Ratio of driving wheelbase to overall engine wheebase | 0.46 | 0.46 |
| Overall Wheelbase (engine & tender) | 73.29' | 75.70' |
| Axle Loading (Maximum Weight per Axle) | 54900 lbs | 56500 lbs |
| Weight on Drivers | 209800 lbs | 224500 lbs |
| Engine Weight | 314800 lbs | 327000 lbs |
| Tender Light Weight | 171000 lbs | 192000 lbs |
| Total Engine and Tender Weight | 485800 lbs | 519000 lbs |
| Tender Water Capacity | 9000 gals | 10000 gals |
| Tender Fuel Capacity (oil/coal) | 12 tons | 16 tons |
| Minimum weight per yard of rail on which locomotive could run | 87.42 lb rail | 93.54 lb rail |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter | 69" | 69" |
| Boiler Pressure | 200 psi | 200 psi |
| Cylinders (dia x stroke) | 27" x 28" | 27" x 30" |
| Tractive Effort | 50290 lbs | 53883 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.17 | 4.17 |
| Heating Ability | ||
| Firebox Area | 303.43 sq. ft | 356 sq. ft |
| Grate Area | 77 sq. ft | 70.30 sq. ft |
| Evaporative Heating Surface | 3655 | 4121 |
| Superheating Surface | 942 | 966 |
| Combined Heating Surface | 4597 | 5087 |
| Evaporative Heating Surface/Cylinder Volume | 196.98 | 207.29 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 15400 | 14060 |
| Same as above plus superheater percentage | 18555.71 | 16729.94 |
| Same as above but substitute firebox area for grate area | 73121.55 | 84720.58 |
| Power L1 | 16920.12 | 16885.23 |
| Power MT | 711.20 | 663.26 |
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