Data from 1929 SAL locomotive diagrams published on http://www.dnaco.net/~gelwood/other/sal--steambk.html .
| Specifications | |
|---|---|
| Class | 690 |
| Locobase ID | 4997 |
| Railroad | Tampa Northern |
| Whyte | 4-6-0 |
| Road Numbers | 690-692 |
| Gauge | Std |
| Builder | Burnham, Williams & Co |
| Year | 1907 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase | 13.50' |
| Engine Wheelbase | 24.33' |
| Ratio of driving wheelbase to overall engine wheebase | 0.55 |
| Overall Wheelbase (engine & tender) | 53.87' |
| Axle Loading (Maximum Weight per Axle) | 38800 lbs |
| Weight on Drivers | 111850 lbs |
| Engine Weight | 149350 lbs |
| Tender Light Weight | 102000 lbs |
| Total Engine and Tender Weight | 251350 lbs |
| Tender Water Capacity | 5000 gals |
| Tender Fuel Capacity (oil/coal) | 10 tons |
| Minimum weight per yard of rail on which locomotive could run | 62.14 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 63" |
| Boiler Pressure | 200 psi |
| Cylinders (dia x stroke) | 19" x 26" |
| Tractive Effort | 25327 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.42 |
| Heating Ability | |
| Firebox Area | 166 sq. ft |
| Grate Area | 28.20 sq. ft |
| Evaporative Heating Surface | 2273 |
| Superheating Surface | |
| Combined Heating Surface | 2273 |
| Evaporative Heating Surface/Cylinder Volume | 266.41 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5640 |
| Same as above plus superheater percentage | 5640 |
| Same as above but substitute firebox area for grate area | 33200 |
| Power L1 | 7637.38 |
| Power MT | 451.61 |
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