Wellman Iron & Steel 0-4-0 "Switcher" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 6 (Locobase 11181)

Data from Exhibit of Locomotives by the Baldwin Locomotive Works (Philadelphia: J B Lippincott, 1893), pp. 54-57. See also DeGolyer, Volume 18, p. 111. Works numbers were 13009 in October 1892 and 13352 in April 1893.

Even among 30-inchers (the gauge, not the locomotives), this was a small engine, one of the smallest in Locobase. #7 was shown at the 1893 Columbian Exhibition.

The boiler was made by the company to whom it was delivered (or perhaps assigned for purposes of display).

Connelly's list tells us that both were sold, #6 to Tidewater Steel Company of Chester, Pa; it was later sold to Southern Iron & Equipment. #7 went to Hemenway & Brown, which delivered it to Chile.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID11,181
RailroadWellman Iron & Steel
Number in Class2
Road Numbers6-7
Number Built2
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 3.33 / 1.01
Engine Wheelbase (ft / m) 3.33 / 1.01
Ratio of driving wheelbase to overall engine wheebase1
Overall Wheelbase (engine & tender) (ft / m) 3.33 / 1.01
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)14,150 / 6418
Engine Weight (lbs / kg)14,150 / 6418
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)14,150
Tender Water Capacity (gals / ML)130 / 0.49
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)12 / 6
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)26 / 660
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)7" x 12" / 178x305
Tractive Effort (lbs / kg)2499 / 1133.53
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.66
Heating Ability
Firebox Area (sq ft / m2)18.30 / 1.70
Grate Area (sq ft / m2) 3.81 / 0.35
Evaporative Heating Surface (sq ft / m2)122 / 11.34
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)122 / 11.34
Evaporative Heating Surface/Cylinder Volume228.25
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation495
Same as above plus superheater percentage495
Same as above but substitute firebox area for grate area2379
Power L12250
Power MT701.12

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