Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 34, p.180. Baldwin works numbers were 34527 in April 1910 and 36564 in May 1911.
Both locomotives were the last new engines to be bought by the W & T. 40 later operate on the Georgia Northern as their 101. 41 was sold to the Wadley Southern Railway, but retained its road number.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 26, p. 242. Works numbers were 18692 in February 1901, 23771 in February 1904, and 31132 in June 1907.
After its service with the W & T, the 53 went to the Wadley Southern, another Georgia shortline. The 54 apparently remained on the W & T throughout its career.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 40 | 51 |
| Locobase ID | 13152 | 11502 |
| Railroad | Wrightsville & Tennille | Wrightsville & Tennille |
| Country | USA | USA |
| Whyte | 4-6-0 | 4-6-0 |
| Number in Class | 2 | 3 |
| Road Numbers | 40-41 | 51, 53-54 |
| Gauge | Std | Std |
| Number Built | 2 | 3 |
| Builder | Baldwin | Burnham, Williams & Co |
| Year | 1910 | 1901 |
| Valve Gear | Walschaert | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 11.33 / 3.45 | 11.33 / 3.45 |
| Engine Wheelbase (ft / m) | 22.17 / 6.76 | 21.58 / 6.58 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.51 | 0.53 |
| Overall Wheelbase (engine & tender) (ft / m) | 51.08 / 15.57 | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 99,700 / 45,223 | 85,300 / 38,691 |
| Engine Weight (lbs / kg) | 128,500 / 58,287 | 110,700 / 50,213 |
| Tender Loaded Weight (lbs / kg) | 90,000 / 40,823 | 62,000 / 28,123 |
| Total Engine and Tender Weight (lbs / kg) | 218,500 / 99,110 | 172,700 / 78,336 |
| Tender Water Capacity (gals / ML) | 4500 / 17.05 | 3000 / 11.36 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6 / 6 | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 55 / 27.50 | 47 / 23.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 57 / 1448 | 56 / 1422 |
| Boiler Pressure (psi / kPa) | 180 / 1240 | 170 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 26" / 457x660 | 17" x 24" / 432x610 |
| Tractive Effort (lbs / kg) | 22,612 / 10256.64 | 17,897 / 8117.95 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.41 | 4.77 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 230 - 2" / 51 | 228 - 2" / 51 |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 13.08 / 3.99 | 12.50 / 3.81 |
| Firebox Area (sq ft / m2) | 152 / 14.13 | 146 / 13.57 |
| Grate Area (sq ft / m2) | 22.40 / 2.08 | 22 / 2.04 |
| Evaporative Heating Surface (sq ft / m2) | 1717 / 159.57 | 1627 / 151.21 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 1717 / 159.57 | 1627 / 151.21 |
| Evaporative Heating Surface/Cylinder Volume | 224.15 | 257.84 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 4032 | 3740 |
| Same as above plus superheater percentage | 4032 | 3740 |
| Same as above but substitute firebox area for grate area | 27,360 | 24,820 |
| Power L1 | 5530 | 5927 |
| Power MT | 366.85 | 459.56 |