Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 62, pp. 355+. Works numbers were 52936 in January 1920 and 52984 in February.
Wood-burning logging Prairies weren't uncommon in the southeast. The specs for this pair also describe a typical working environment: "Rough track", "short grades of 6%" and "prevailing grades of 1% to 3%". Florida temperatures were acknowledged through the provision of a "large and roomy" cab with ventilators in the roof and large windows.
This pair served H-W and later Brown Florida Lumber.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 37 |
| Locobase ID | 14704 |
| Railroad | Henderson-Waits |
| Country | USA |
| Whyte | 2-6-2 |
| Number in Class | 2 |
| Road Numbers | 37-38 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Baldwin |
| Year | 1920 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 10.25 / 3.12 |
| Engine Wheelbase (ft / m) | 26.83 / 8.18 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.38 |
| Overall Wheelbase (engine & tender) (ft / m) | 50.54 / 15.40 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 92,400 / 41,912 |
| Engine Weight (lbs / kg) | 120,800 / 54,794 |
| Tender Loaded Weight (lbs / kg) | 90,000 / 40,823 |
| Total Engine and Tender Weight (lbs / kg) | 210,800 / 95,617 |
| Tender Water Capacity (gals / ML) | 4500 / 17.05 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 51 / 25.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 170 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 |
| Tractive Effort (lbs / kg) | 22,778 / 10331.94 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.06 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 200 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13.75 / 4.19 |
| Firebox Area (sq ft / m2) | 121 / 11.24 |
| Grate Area (sq ft / m2) | 18.20 / 1.69 |
| Evaporative Heating Surface (sq ft / m2) | 1552 / 144.18 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1552 / 144.18 |
| Evaporative Heating Surface/Cylinder Volume | 245.96 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3094 |
| Same as above plus superheater percentage | 3094 |
| Same as above but substitute firebox area for grate area | 20,570 |
| Power L1 | 4262 |
| Power MT | 305.07 |