Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 13, p 234. Baldwin works numbers were 8585 in June 1887 and 8676 in July.
The 17 and 18 worked in the Chattanooga area through several name changes such as Chattanooga Union and Belt Railway of Chattanooga. In September 1895, the Alabama Great Southern bought the BRC and took both engines onto its roster as 17-18. 17 later worked for the Woodville Railroad, which operated it until 1910.
18 bounced around the southeast serving lumber companies, although its first post-URofC assignment was the Belt Railway of Chattanooga beginning in 1895. Then the 18 went to the Alabama Great Southern, then to locomotive rebuilder/reseller Southern Iron & Equipment. The SI&E sold the engine to the (I love this name) Norgress & Neefeffee of Morgan City, La as their #1. The N&N sold the 1 to Kile Lumber Company for the Cherokee Lumber Company. Later, CLC sold the by-now worn engine back to SI&E, who sent it on Great Eastern Lumber of Savannah, Ga.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 17 |
| Locobase ID | 11880 |
| Railroad | Union Railway of Chattanooga |
| Country | USA |
| Whyte | 0-4-4T |
| Number in Class | 2 |
| Road Numbers | 17-18 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Burnham, Parry, Williams & Co |
| Year | 1887 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6.50 / 1.98 |
| Engine Wheelbase (ft / m) | 17.33 / 5.28 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.38 |
| Overall Wheelbase (engine & tender) (ft / m) | 17.33 / 5.28 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 33,000 / 14,969 |
| Engine Weight (lbs / kg) | 48,000 / 21,772 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 48,000 |
| Tender Water Capacity (gals / ML) | 650 / 2.46 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 28 / 14 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 18" / 305x457 |
| Tractive Effort (lbs / kg) | 6509 / 2952.44 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.07 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 75 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 10.20 / 3.11 |
| Firebox Area (sq ft / m2) | 50 / 4.65 |
| Grate Area (sq ft / m2) | 10.30 / 0.96 |
| Evaporative Heating Surface (sq ft / m2) | 448 / 41.64 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 448 / 41.64 |
| Evaporative Heating Surface/Cylinder Volume | 189.83 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1339 |
| Same as above plus superheater percentage | 1339 |
| Same as above but substitute firebox area for grate area | 6500 |
| Power L1 | 2820 |
| Power MT | 376.79 |