These low-drivered Atlantics are an odd breed -- the builder doesn't seem to have exploited the addition of a trailing axle to enlarge the grate or firebox area by much.
Builders numbers were 28412-28421, 31240-31244, and 39047-39051 on locomotives that were delivered in 1904-1905. The class was disposed of between 1923-1930.
| Specifications | |
|---|---|
| Class | 45 |
| Locobase ID | 6673 |
| Railroad | Florida East Coast |
| Whyte | 4-4-2 |
| Road Numbers | 45-64 |
| Gauge | Std |
| Builder | Alco-Schenectady |
| Year | 1904 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase | 7' |
| Engine Wheelbase | 25.92' |
| Ratio of driving wheelbase to overall engine wheebase | 0.27 |
| Overall Wheelbase (engine & tender) | 50.23' |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 81000 lbs |
| Engine Weight | 151000 lbs |
| Tender Light Weight | |
| Total Engine and Tender Weight | 0 |
| Tender Water Capacity | 5000 gals |
| Tender Fuel Capacity (oil/coal) | 2400 gals |
| Minimum weight per yard of rail on which locomotive could run | 68 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 70" |
| Boiler Pressure | 180 psi |
| Cylinders (dia x stroke) | 19" x 26" |
| Tractive Effort | 20515 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.95 |
| Heating Ability | |
| Firebox Area | 134.80 sq. ft |
| Grate Area | 37.73 sq. ft |
| Evaporative Heating Surface | 2285 |
| Superheating Surface | |
| Combined Heating Surface | 2285 |
| Evaporative Heating Surface/Cylinder Volume | 267.81 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 6791 |
| Same as above plus superheater percentage | 6791 |
| Same as above but substitute firebox area for grate area | 24264 |
| Power L1 | 7283 |
| Power MT | 396.45 |
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