551-555 had names of famous Confederate generals:
551 General Robert E. Lee
552 General T.J. Jackson
553 General J.E.B. Stuart
554 General A. P. Hill
555 General J.E. Johnston
6 later engines were named after Governors; all other engines were unnamed.
601-606 entered service in 1938, 607-612 in 1942, and 613-622 in 1944.
| Specifications | |
|---|---|
| Class | notes |
| Locobase ID | 276 |
| Railroad | Richmond, Fredericksburg & Potomac |
| Whyte | 4-8-4 |
| Road Numbers | 551-555,601-622 |
| Gauge | Std |
| Builder | Baldwin |
| Year | 1937 |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase | 20' |
| Engine Wheelbase | 46.08' |
| Ratio of driving wheelbase to overall engine wheebase | 0.43 |
| Overall Wheelbase (engine & tender) | |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 277245 lbs |
| Engine Weight | 406500 lbs |
| Tender Light Weight | 252000 lbs |
| Total Engine and Tender Weight | 658500 lbs |
| Tender Water Capacity | 18000 gals |
| Tender Fuel Capacity (oil/coal) | 17 tons |
| Minimum weight per yard of rail on which locomotive could run | 115.52 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 77" |
| Boiler Pressure | 275 psi |
| Cylinders (dia x stroke) | 27" x 30" |
| Tractive Effort | 66391 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.18 |
| Heating Ability | |
| Firebox Area | 529 sq. ft |
| Grate Area | 86.50 sq. ft |
| Evaporative Heating Surface | 4289 |
| Superheating Surface | 1325 |
| Combined Heating Surface | 5614 |
| Evaporative Heating Surface/Cylinder Volume | 215.74 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 23787.50 |
| Same as above plus superheater percentage | 29401.76 |
| Same as above but substitute firebox area for grate area | 179809.59 |
| Power L1 | 33478.49 |
| Power MT | 1064.87 |
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