Marcellus & Otisco Lake 2-4-0 "Porter" Locomotives in the USA
Class Details by Steve Llanso of Sweat House Media
Class 1 (Locobase 9647)
Data from 1908 Locomotive Cyclopedia, fig 24 and from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 27, p. 13. Works number was 24369 in June 1904.
The website for New York State history that covers this small railway -- [
], last accessed 12 November 2008 -- says that this railway was originally formed as an electric rail line. By 1903, the original backers were out and William Barrows of Philadelphia. He determined that the nine-mile M & OL should be a steam-powered short line and bought the little 2-4-0 shown in this entry.
Its profile offered challenges that the Baldwin spec flagged by advising the builder to "Give especial attention to curving." The curves measured more than 20 degrees and grades inclined at 1 1/2-2 1/2 percent.
A mixed-traffic engine, the #1's main passenger function disappeared when that service was cut in 1914. Freight service continued to the mills in Marcellus and Marietta for decades, but the #1 was scrapped in 1918.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 9647 |
| Railroad | Marcellus & Otisco Lake |
| Country | USA |
| Whyte | 2-4-0 |
| Number in Class | 1 |
| Road Numbers | 1 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1904 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.50 / 2.29 |
| Engine Wheelbase (ft / m) | 15.67 / 4.78 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.48 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 71,160 / 32,278 |
| Engine Weight (lbs / kg) | 84,460 / 38,310 |
| Tender Loaded Weight (lbs / kg) | 50,000 / 22,680 |
| Total Engine and Tender Weight (lbs / kg) | 134,460 / 60,990 |
| Tender Water Capacity (gals / ML) | 2500 / 9.47 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 59 / 29.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 56 / 1422 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 |
| Tractive Effort (lbs / kg) | 16,845 / 7640.77 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.22 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 196 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9 / 2.74 |
| Firebox Area (sq ft / m2) | 97.40 / 9.05 |
| Grate Area (sq ft / m2) | 16.64 / 1.55 |
| Evaporative Heating Surface (sq ft / m2) | 1012 / 94.05 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1012 / 94.05 |
| Evaporative Heating Surface/Cylinder Volume | 160.38 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2662 |
| Same as above plus superheater percentage | 2662 |
| Same as above but substitute firebox area for grate area | 15,584 |
| Power L1 | 3548 |
| Power MT | 219.84 |