Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 22, p. 228,. See also Locobase 9647 for a description of the M & OL. Works number was 37520 in February 1912.
About six years and 10,000 builder's numbers after Baldwin supplied a medium-sized saddle-tank to Berlin Mills (Locobase 12909), the Philadelphia builder delivered a very similar engine to a New York State short line. Like the 2-4-0 that preceded it, the 3 had to handle 2% grades and relatively tight 150-ft (46-metre) radius curves. The rails weighed a relatively heavy 70 lb/yard (35-kg/metre).
Unlike the 1, however, the 3's mission was moving freight for the mills in Marcellus and Marietta. After almost 30 years of service, it was scrapped in 1941.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 3 |
| Locobase ID | 13922 |
| Railroad | Marcellus & Otisco Lake |
| Country | USA |
| Whyte | 2-4-2ST |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1912 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7 / 2.13 |
| Engine Wheelbase (ft / m) | 22.42 / 6.83 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.31 |
| Overall Wheelbase (engine & tender) (ft / m) | 22.42 / 6.83 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 87,000 / 39,463 |
| Engine Weight (lbs / kg) | 124,500 / 56,472 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 1800 / 6.82 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 73 / 36.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 175 / 1210 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 22" / 406x559 |
| Tractive Effort (lbs / kg) | 19,040 / 8636.41 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.57 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 180 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 10.58 / 3.22 |
| Firebox Area (sq ft / m2) | 104 / 9.66 |
| Grate Area (sq ft / m2) | 14.40 / 1.34 |
| Evaporative Heating Surface (sq ft / m2) | 1094 / 101.64 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1094 / 101.64 |
| Evaporative Heating Surface/Cylinder Volume | 213.67 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2520 |
| Same as above plus superheater percentage | 2520 |
| Same as above but substitute firebox area for grate area | 18,200 |
| Power L1 | 4046 |
| Power MT | 205.06 |