Duluth, South Shore, & Atlantic 2-6-0 "Mogul" Locomotives in the USA
Class Details by Steve Llanso of Sweat House Media
Class D-2 (Locobase 1327)
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 14, p. 177. Works numbers were 9548-9551, 9553-9555, 9557-9558 in October 1888; 9618, 9622-9624, 9627, 9631 in November.
Same as Brooks-built D-1s. Original number series ran from mid-80s into the 90s, non-consecutively. Sold for scrap beginning in 1925 and ending in 1933.
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| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | D-2 |
| Locobase ID | 1327 |
| Railroad | Duluth, South Shore, & Atlantic |
| Country | USA |
| Whyte | 2-6-0 |
| Number in Class | 15 |
| Road Numbers | 87-101/400-414 |
| Gauge | Std |
| Number Built | 15 |
| Builder | Burnham, Parry, Williams & Co |
| Year | 1888 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 15.17 / 4.62 |
| Engine Wheelbase (ft / m) | 23.17 / 7.06 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.65 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 78,000 / 35,380 |
| Engine Weight (lbs / kg) | 118,000 / 53,524 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 3000 / 11.36 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 43 / 21.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 56 / 1422 |
| Boiler Pressure (psi / kPa) | 155 / 1070 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19" x 24" / 483x610 |
| Tractive Effort (lbs / kg) | 20,384 / 9246.04 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.83 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 200 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.50 / 3.51 |
| Firebox Area (sq ft / m2) | 107.42 / 9.98 |
| Grate Area (sq ft / m2) | 16.90 / 1.57 |
| Evaporative Heating Surface (sq ft / m2) | 1312 / 121.93 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1312 / 121.93 |
| Evaporative Heating Surface/Cylinder Volume | 166.50 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2620 |
| Same as above plus superheater percentage | 2620 |
| Same as above but substitute firebox area for grate area | 16,650 |
| Power L1 | 3395 |
| Power MT | 287.87 |