The AERJ explains that this design was one of five shown by Pittsburgh at the 1893 Columbian Exposition in Chicago. See Locobase 5845 for the Vandalia Line's very similar Ten-wheeler and a description of the "Pittsburgh system" of cross-compounding.
The Pittsburgh Rumary list (supplied in May 2005 by Allen Stanley from his extensive collection) shows that one of the 3 was produced in April 1893 (works #1451) and two more (works #1489-1490) were produced in November 1893.
The Virginia Air Line was built to get around the loading-gauge limitations of many of the Blue Ridge tunnels on the C & O. Chartered in 1906 and opened in October 1908, the VAL linked the Piedmont subdivision with the Rivanna subdivision of the James River Line. Lindsay, Virginia was the junction at the Piedmont end and Strathmore joined the VAL and the Rivanna sub.
This pair of Moguls seem small to be carrying bigger loads than could fit through any tunnel; indeed, they were small 2-6-0s for their time, period. But they obviously served the mixed-traffic trains that made up the rest of the schedule. 427 left service in 1935, 428 in 1946.
| Specifications | ||
|---|---|---|
| Class | 13 | E-5 |
| Locobase ID | 9410 | 7855 |
| Railroad | Columbus, Hocking Valley & Toledo (C&O) | Virginia Air Line (C&O) |
| Whyte | 2-6-0 | 2-6-0 |
| Road Numbers | 13-15 | 427-428 |
| Gauge | Std | Std |
| Builder | Pittsburgh | Burnham, Williams & Co |
| Year | 1893 | 1906 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase | 13.17' | 12' |
| Engine Wheelbase | 20.83' | 20.25' |
| Ratio of driving wheelbase to overall engine wheebase | 0.63 | 0.59 |
| Overall Wheelbase (engine & tender) | 48.33' | 48.67' |
| Axle Loading (Maximum Weight per Axle) | ||
| Weight on Drivers | 100000 lbs | 104300 lbs |
| Engine Weight | 116000 lbs | 120400 lbs |
| Tender Light Weight | 96500 lbs | 117400 lbs |
| Total Engine and Tender Weight | 212500 lbs | 237800 lbs |
| Tender Water Capacity | 3600 gals | 6000 gals |
| Tender Fuel Capacity (oil/coal) | 7 tons | 10 tons |
| Minimum weight per yard of rail on which locomotive could run | 55.56 lb rail | 58 lb rail |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter | 54" | 56" |
| Boiler Pressure | 180 psi | 180 psi |
| Cylinders (dia x stroke) | 19" x 26" (1) | 19" x 26" |
| Tractive Effort | 18607 lbs | 25644 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.37 | 4.07 |
| Heating Ability | ||
| Firebox Area | 161 sq. ft | 144 sq. ft |
| Grate Area | 24.20 sq. ft | 25.90 sq. ft |
| Evaporative Heating Surface | 1472 | 1514 |
| Superheating Surface | ||
| Combined Heating Surface | 1472 | 1514 |
| Evaporative Heating Surface/Cylinder Volume | 345.05 | 177.45 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 4356 | 4662 |
| Same as above plus superheater percentage | 4356 | 4662 |
| Same as above but substitute firebox area for grate area | 28980 | 25920 |
| Power L1 | 3711.61 | 4399 |
| Power MT | 245.48 | 278.95 |
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