Builder info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004. Works #2427-2429, produced in May 1894.
Narrow firebox measured 7 ft long by 35" wide.
Apparently preserved in the 1930 book as an homage to the railroad's early days, the diagram does not show builder or year. But all signs point to the 1870s at the latest. The cabbage stack forward, low-pressure boiler, small heating surface area and grate all suggest sometime in that decade. See Locobase 7665 for another example from the same period.
This pair of locomotives may have been older than the 400 shown in Locobase 7364. As with that engine, their appearance in a 1930 diagram book must have stood as a memorial to the 1870s.
These cabbage-stackers were part of the Atlantic Coast Line's dowry when it was formed in 1900.
The gracefully drawn elevation shows a typical Eight-wheeler of the time with its ornate steam dome perched over the firebox's crown sheet. The firebox itself nestled deeply between the driving axles. A smaller steam dome sat on the first boiler course just ahead of the front driving axle.
Rogers built four of the locomotives for the Wilmington & Weldon. Meanwhile, another constituent -- eventually named the Atlantic Coast Line of South Carolina -- had purchased 7 identical engines.
The W & W was one of the principal predecessors, first as the Wilmington and Raleigh that began service in 1840, having completed the Wilmington-to-Weldon route that was at the time the world's longest railroad. (according to the North Carolina Business History website http://www.historync.org/railroad-WWRR.htm entry, accessed 31 Dec 2005).
In 1854, the railroad acquired its Wilmington & Weldon identity. By 1859, the W & W operated schedules day and night between Wilmington & Weldon. ( See the schedule at http://docsouth.unc.edu/nc/wwrr1859/wwrr1859.html (accessed 31 Dec 2005).) The express trips took 8 hours and had numerous flag stops. Over time the W & W combined and consumed several other railroads.
Three years after Rogers delivered locomotives to the Wilmington & Weldon and the ACL of South Carolina, they repeated the order with slightly larger engines. The ACL-SC received 4, the W & W 2. In most respects, they were identical to the earlier locomotives, but all of the dimensions had been enlarged to a degree. Like most of the other ACL classes, these engines operated for decades.
A large collection of Eight-wheelers came into the ACL in 1900 when it was formed out of several predecessors. This particular group was the most numerous and had stocked 4 railroads as follows:
The ACL of South Carolina - 24 locomotives (504-527)
Wilmington & Weldon - 17 locomotives (123-135, 141-144)
ACL of Virginia - 13 locomotives (387-399)
Norfolk & Carolina -- 6 locomotives
As far as Locobase can determine from the diagram in the book, this pair were originally produced as Vauclain compounds. The tiny HP cylinders took the steam first, then shared it with the not-so-very-much larger LP cylinders. They were later converted to simple expansion; see Locobase 7675.
Although similar in many ways to the D class that were delivered to the W & W ten years earlier (Locobase 7350), these Eight-wheelers were larger, operated at a higher pressure, and stood on taller drivers. This pair originally were delivered as Vauclain compounds (Locobase 7352). To convert them to simple-expansion,, It appears that the ACL simply removed the smaller cylinders
When the ACL printed their 1930 diagram book, they still were listed as active.
| Specifications | ||||||||
|---|---|---|---|---|---|---|---|---|
| Class | 25 | A1 - 400 | A1 - 401 | D | F-1 | F/F-2 | H | H - simpled |
| Locobase ID | 2148 | 7664 | 7665 | 7350 | 7354 | 7355 | 7352 | 7675 |
| Railroad | Florida Southern (ACL) | Atlantic Coast Line (ACL) | Atlantic Coast Line (ACL) | Atlantic Coast Line (ACL) | Atlantic Coast Line (ACL) | Atlantic Coast Line (ACL) | Wilmington & Weldon (ACL) | Atlantic Coast Line (ACL) |
| Whyte | 4-4-0 | 4-4-0 | 4-4-0 | 4-4-0 | 4-4-0 | 4-4-0 | 4-4-0 | 4-4-0 |
| Road Numbers | 25-27 / 701-03 / 537-39 | 400 | 401-402 | 117-120, 590-596 | 121-122, 500-03 /1-4, 479 | 145-146 / 65-66 | 145-146 / 65-66 | |
| Gauge | Std | Std | Std | Std | Std | Std | Std | Std |
| Builder | Brooks | Rogers | Rogers | several | Burnham, Williams & Co | Burnham, Williams & Co | ||
| Year | 1894 | 1870 | 1870 | 1882 | 1885 | 1886 | 1892 | 1913 |
| Valve Gear | Stephenson | Stephenson | Stephenson | Stephenson | Stephenson | Stephenson | Stephenson | Stephenson |
| Locomotive Length and Weight | ||||||||
| Driver Wheelbase | 8.50' | 7.67' | 7.50' | 8.25' | 8.75' | 8.50' | 8.50' | 8.50' |
| Engine Wheelbase | 22.50' | 21.33' | 21.54' | 22.36' | 22.95' | 23' | 23.10' | 23.10' |
| Ratio of driving wheelbase to overall engine wheebase | 0.38 | 0.36 | 0.35 | 0.37 | 0.38 | 0.37 | 0.37 | 0.37 |
| Overall Wheelbase (engine & tender) | 44.75' | 42.69' | 40.83' | 43.85' | 44.97' | 45.37' | 45.56' | 45.56' |
| Axle Loading (Maximum Weight per Axle) | 30340 lbs | 27720 lbs | 28900 lbs | |||||
| Weight on Drivers | 58600 lbs | 39200 lbs | 41000 lbs | 50200 lbs | 57100 lbs | 57410 lbs | 56620 lbs | 56620 lbs |
| Engine Weight | 93600 lbs | 64500 lbs | 66200 lbs | 82100 lbs | 90900 lbs | 92210 lbs | 93820 lbs | 93820 lbs |
| Tender Light Weight | 67000 lbs | 42600 lbs | 41650 lbs | 62000 lbs | 62000 lbs | 62000 lbs | 62000 lbs | 62000 lbs |
| Total Engine and Tender Weight | 160600 lbs | 107100 lbs | 107850 lbs | 144100 lbs | 152900 lbs | 154210 lbs | 155820 lbs | 155820 lbs |
| Tender Water Capacity | 3500 gals | 2000 gals | 2700 gals | 2700 gals | 2700 gals | 2700 gals | 2700 gals | |
| Tender Fuel Capacity (oil/coal) | 6 tons | tons | tons | tons | tons | tons | tons | tons |
| Minimum weight per yard of rail on which locomotive could run | 49 lb rail | 33 lb rail | 34 lb rail | 42 lb rail | 48 lb rail | 48 lb rail | 47 lb rail | 47 lb rail |
| Geometry Relating to Tractive Effort | ||||||||
| Driver Diameter | 62" | 59.50" | 65" | 62" | 62" | 63" | 68" | 68" |
| Boiler Pressure | 160 psi | 130 psi | 130 psi | 140 psi | 145 psi | 130 psi | 180 psi | 180 psi |
| Cylinders (dia x stroke) | 17" x 24" | 15" x 24" | 15" x 24" | 17" x 24" | 18" x 24" | 18" x 24" | 11.5" x 24" | 19" x 24" |
| Tractive Effort | 15214 lbs | 10029 lbs | 9180 lbs | 13313 lbs | 15458 lbs | 13639 lbs | 10453 lbs | 19494 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.85 | 3.91 | 4.47 | 3.77 | 3.69 | 4.21 | 5.42 | 2.90 |
| Heating Ability | ||||||||
| Firebox Area | 111 sq. ft | 87.60 sq. ft | 75.60 sq. ft | 96.52 sq. ft | 113.07 sq. ft | 134.50 sq. ft | 134.80 sq. ft | 134.80 sq. ft |
| Grate Area | 17 sq. ft | 14.39 sq. ft | 11.72 sq. ft | 15.81 sq. ft | 17.23 sq. ft | 17.10 sq. ft | 17.11 sq. ft | 17.11 sq. ft |
| Evaporative Heating Surface | 1166 | 808 | 876 | 1156 | 1265 | 1457 | 1457 | 1457 |
| Superheating Surface | ||||||||
| Combined Heating Surface | 1166 | 808 | 876 | 1156 | 1265 | 1457 | 1457 | 1457 |
| Evaporative Heating Surface/Cylinder Volume | 184.93 | 164.60 | 178.46 | 183.35 | 178.96 | 206.12 | 504.98 | 185.00 |
| Computations Relating to Power Output (More Information) | ||||||||
| Robert LeMassena's Power Computation | 2720 | 1871 | 1524 | 2213 | 2498 | 2223 | 3080 | 3080 |
| Same as above plus superheater percentage | 2720 | 1871 | 1524 | 2213 | 2498 | 2223 | 3080 | 3080 |
| Same as above but substitute firebox area for grate area | 17760 | 11388 | 9828 | 13513 | 16395 | 17485 | 24264 | 24264 |
| Power L1 | 4513 | 3272 | 3598 | 3760 | 3880 | 4112 | 5520 | 5520 |
| Power MT | 339.57 | 368.04 | 386.94 | 330.25 | 299.61 | 315.81 | 429.87 | 429.87 |
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