Trailing-truck booster added 11,100 lb to starting tractive effort. These engines were built using the boilers from 30 I-10 2-8-0s. The back end was unchanged, the front lengthened. Drivers had friction bearings, lead and trailing trucks used Timken roller bearings.
| Specifications | |
|---|---|
| Class | T1 |
| Locobase ID | 275 |
| Railroad | Reading |
| Whyte | 4-8-4 |
| Road Numbers | 2100-2129 |
| Gauge | Std |
| Builder | Reading |
| Year | 1945 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase | 19.25' |
| Engine Wheelbase | 45.83' |
| Ratio of driving wheelbase to overall engine wheebase | 0.42 |
| Overall Wheelbase (engine & tender) | |
| Axle Loading (Maximum Weight per Axle) | 69740 lbs |
| Weight on Drivers | 278200 lbs |
| Engine Weight | 441300 lbs |
| Tender Light Weight | 367700 lbs |
| Total Engine and Tender Weight | 809000 lbs |
| Tender Water Capacity | 19000 gals |
| Tender Fuel Capacity (oil/coal) | 26 tons |
| Minimum weight per yard of rail on which locomotive could run | 115.92 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 70" |
| Boiler Pressure | 240 psi |
| Cylinders (dia x stroke) | 27" x 32" |
| Tractive Effort | 67984 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.09 |
| Heating Ability | |
| Firebox Area | 465 sq. ft |
| Grate Area | 94.40 sq. ft |
| Evaporative Heating Surface | 4920 |
| Superheating Surface | 1214 |
| Combined Heating Surface | 6134 |
| Evaporative Heating Surface/Cylinder Volume | 232.01 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 22656 |
| Same as above plus superheater percentage | 27139.92 |
| Same as above but substitute firebox area for grate area | 133687.12 |
| Power L1 | 23992.93 |
| Power MT | 760.54 |
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