In 1938, six more 4-8-4s were acquired from Baldwin (road numbers 601 through 606). Each was named for a Virginia governor. These locomotives had 77" drivers, 27 x 30 cylinders, a 260 psi boiler pressure, a tractive effort of 62,800 lbs and weighed 408,400 pounds. In 1942, another six (road numbers 607 through 612), identical to the 1938 "Governors", were added to the roster and each of them was also given a name of a Virginia governor.
10 more 4-8-4s were delivered by Baldwin in 1944 or 1945 and were assigned road numbers 613 through 622. They were identical to the "Governors" but were each given a name of a Virginia statesman.
After receiving the first five, the RF&P called its 4-8-4s "Generals". As it added the "Governors" the older 4-8-4s were still called "Generals" while the newer 12 were called "Governors". After it received the last 10 which were named for Virginia statesmen it had three different names for the 4-8-4 wheel arrangement.
RF&P 4-8-4 Locomotive Names | |
---|---|
Road # | Locomotive Name |
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. Johnson |
Governors | |
601 | Governor Patrick Henry |
602 | Governor Thomas Jefferson |
603 | Governor Thomas Nelson |
604 | Governor Benjamin Harrison |
605 | Governor James Monroe |
606 | Governor John Tyler |
607 | Governor Edmund Randolph |
608 | Governor Henry A. Wise |
609 | Governor John Letcher |
610 | Governor Fitzhugh Lee |
611 | Governor William Smith |
612 | Governor Claude A. Swanson |
Statesmen | |
613 | John Marshall |
614 | George Washington |
615 | Henry Clay |
616 | George Mason |
617 | John Randolph |
618 | James Madison |
619 | William Byrd |
620 | George Wythe |
621 | Richard Henry Lee |
622 | Carter Braxton |
Data from 1947 Locomotive Cyclopedia tables and diagrams. (Thanks to Chris Hohl, whose 22 February 2013 email flagged an error on the valve gear and to Chuck Zeiler for his 14 April 2014 email pointing out the duplication of the comments section. To quote Locobase from his now singular set of comments below: "Org!") Works numbers were 61974-61978 in 1936.
Firebox heating surface included 124 sq ft (11.5 sq m) in three thermic syphons and 19 sq ft (1.75 sq m) in arch tubes. The Generals were big, powerful locomotives, but they suffered from a curious limitation. According to an account of Washington, DC area railroad bridges published in the bulletin of the National Railway Historical Society's DC chapter -- Robert Cohen, "History of the Long Railroad Bridge Crossing Across the Potomac River" [] -- "Amazingly, they were several inches too wide to properly clear the tunnels in Washington. More importantly they had too heavy of an axle-load to traverse the Long Bridge." Org! Locobase wonders what former employees approved that spec? Cohen notes the consequences: "These two factors forever consigned these beautiful engines to the Virginia side of the river and freight service. Although they were pressed into emergency passenger service on occasion, they always stayed on the south side of the river." Cohen asks: "One can only wonder how they were delivered from their Pennsylvania manufacturer to the RF&P at that time." 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 See Locobase 276 for the much-altered later RF&P 4-8-4s that were adapted to the DC-area's clearances.Data from table and diagram in 1947 Locomotive Cyclopedia and RF&P 1937 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. 601-606 entered service in 1938 (works numbers 62218-62223), 607-612 in 1942 (works numbers 64625-64630), and 613-622 (works numbers 71992-72001) in 1944.
Firebox heating surface included 103 sq ft (9.55 sq m) in three thermic syphons. and 140 sq ft (13 sq m) in the combustion chamber as well as 18 sq ft (1.65 sq m) in arch tubes. One-piece cast steel bed frame and Worthington 5-SA feed water heater. The last ten had Timken roller bearings on all axles. Tender capacity increased from 16,000 to 18,000 US gallons (68,130 litres) in 607-622, which increased its weight to 313,600 lb (142,247 kg). Taken together with the slightly heavier engine (409,400 lb/185,701 kg), this motive power system weighed 723,000 lb (327,948 kg). This class represented a substantial retrogression in certain basic respects from the 1936 Generals (Locobase 10076). In place of the capacious Schmidt Type E flue arrangements, Baldwin fitted a smaller vessel with a more traditional layout. As noted in the Generals entry, much of the difference can be attributed to a belated recognition that the original quintet was too wide and too heavy for the Potomac River bridges. The first twelve were named for Governors: 601 Governor Patrick Henry 602 Governor Thomas Jefferson 603 Governor Thomas Nelson 604 Governor Benjamin Harrison 605 Governor James Monroe 606 Governor John Tyler in 1938 and 607 Governor Edmund Randolph 608 Governor Henry A. Wise 609 Governor John Letcher 610 Governor Fitzhugh Lee 611 Governor William Smith 612 Governor Claude A. Swanson in 1942 The last group were named for Statesmen: 613 John Marshall 614 George Washington 615 Henry Clay 616 George Mason 617 John Randolph 618 James Madison 619 William Byrd 620 Henry Wythe 621 Richard Henry Lee 622 Carter Braxton
Principal Dimensions by Steve Llanso of Sweat House Media | ||
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Class | Generals | notes |
Locobase ID | 10076 | 276 |
Railroad | Richmond, Fredericksburg & Potomac (RF&P) | Richmond, Fredericksburg & Potomac (RF&P) |
Country | USA | USA |
Whyte | 4-8-4 | 4-8-4 |
Number in Class | 22 | 22 |
Road Numbers | 551-555 | 601-622 |
Gauge | Std | Std |
Number Built | 22 | 22 |
Builder | Baldwin | Baldwin |
Year | 1936 | 1938 |
Valve Gear | Walschaert | Walschaert |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 20 / 6.10 | 20 / 6.10 |
Engine Wheelbase (ft / m) | 46.92 / 14.30 | 46.08 / 14.05 |
Ratio of driving wheelbase to overall engine wheelbase | 0.43 | 0.43 |
Overall Wheelbase (engine & tender) (ft / m) | 97.19 / 29.62 | 97.87 / 29.83 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | 277,245 / 125,756 | 261,486 / 118,608 |
Engine Weight (lbs / kg) | 466,040 / 211,392 | 407,810 / 184,980 |
Tender Loaded Weight (lbs / kg) | 376,900 / 170,959 | 282,000 / 127,913 |
Total Engine and Tender Weight (lbs / kg) | 842,940 / 382,351 | 689,810 / 312,893 |
Tender Water Capacity (gals / ML) | 20,000 / 75.76 | 16,000 / 60.61 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 22 / 20 | 17 / 16 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 116 / 58 | 109 / 54.50 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 77 / 1956 | 77 / 1956 |
Boiler Pressure (psi / kPa) | 275 / 19 | 260 / 17.90 |
High Pressure Cylinders (dia x stroke) (in / mm) | 27" x 30" / 686x762 | 27" x 30" / 686x762 |
Tractive Effort (lbs / kg) | 66,391 / 30114.49 | 62,770 / 28472.03 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.18 | 4.17 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 73 - 2.25" / 57 | 189 - 2.25" / 57 |
Flues (number - dia) (in / mm) | 205 - 3.5" / 89 | 54 - 5.5" / 140 |
Flue/Tube length (ft / m) | 21 / 6.40 | 20 / 6.10 |
Firebox Area (sq ft / m2) | 417 / 38.75 | 503 / 46.73 |
Grate Area (sq ft / m2) | 96 / 8.92 | 86.50 / 8.04 |
Evaporative Heating Surface (sq ft / m2) | 4372 / 406.32 | 4289 / 398.46 |
Superheating Surface (sq ft / m2) | 2165 / 201.21 | 1325 / 123.10 |
Combined Heating Surface (sq ft / m2) | 6537 / 607.53 | 5614 / 521.56 |
Evaporative Heating Surface/Cylinder Volume | 219.92 | 215.74 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 26,400 | 22,490 |
Same as above plus superheater percentage | 35,112 | 27,888 |
Same as above but substitute firebox area for grate area | 152,518 | 162,167 |
Power L1 | 46,053 | 31,435 |
Power MT | 1464.83 | 1060.13 |