Marcellus & Otisco Lake 2-4-0 "Porter" Locomotives in the USA

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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 -- http://www.mhs.marcellusny.com/MHS_Home/Marcellus_and_Otisco_Lake_Railw.html, 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.

Specifications by Steve Llanso of Sweat House Media
Class1
Locobase ID9647
RailroadMarcellus & Otisco Lake
CountryUSA
Whyte2-4-0
Number in Class1
Road Numbers1
GaugeStd
Number Built1
BuilderBurnham, Williams & Co
Year1904
Valve GearStephenson
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 wheebase 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 / ML/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 / 11
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
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 Volume160.51
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2662
Same as above plus superheater percentage2662
Same as above but substitute firebox area for grate area15,584
Power L13550
Power MT219.97