Ogdensburg & Lake Champlain 4-4-0 "American" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class St Clair (Locobase 13549)

Data from table entitled "Table of Dimensions of the Locomotives" in New England Association of Railway Superintendents, Report of the Trials of Locomotive Engines Made Upon 1st and 2nd October, 1851 (Boston: B J Yerrinton, Printers, 1852), p. 16.

In the test, the Essex took more than 3 additional minutes to cover the 9-mile trial distance than did the Western's Addison Gilmore (Locobase 13519).

The O & LC would eventually merge with the Rutland.

NB: Boiler pressure and tube length both represent estimates.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassSt Clair
Locobase ID13549
RailroadOgdensburg & Lake Champlain
Number in Class1
Road Numbers20
Number Built1
BuilderEssex Company
Valve GearV-hook
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)48,650 / 22,067
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54 / 1372
Boiler Pressure (psi / kPa)115 / 5.20
High Pressure Cylinders (dia x stroke) (in / mm)15" x 20" / 381x508
Tractive Effort (lbs / kg)8146 / 3694.97
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)153 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.92 / 3.02
Firebox Area (sq ft / m2)66.10 / 6.14
Grate Area (sq ft / m2)10.75 / 1
Evaporative Heating Surface (sq ft / m2)760 / 70.61
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)760 / 70.61
Evaporative Heating Surface/Cylinder Volume185.82
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1236
Same as above plus superheater percentage1236
Same as above but substitute firebox area for grate area7602
Power L12760
Power MT

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