Hamilton Coke & Iron Company 2-8-0 "Consolidation" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 704 (Locobase 15490)

Data from DeGolyer, Vol 80, pp. 419. Works number was 60834 in May 1929.

Founded in 1900 as the Hamilton Otto Coke Co in New Miami, Ohio, this iron and steel maker became one of the two suppliers of molten metal from open hearth furnaces to the Armco Steel Company. The 704 pulled a train of ladle or hot metal cars from the basic furnace to the steel-making furnace. This run usually began and ended in a single yard, but the B&O ran a hot metal train between Hamilton and Middletown, Ohio.

Just before this locomotive emerged from Eddystone, Armco bought the HC&IC. This Consolidation was basic transportation with few frills. Its cylinders used 8" (203 mm) piston valves. The line had only modest grades of 1 1/2% and 20 degree curves.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID15,490
RailroadHamilton Coke & Iron Company
Number in Class1
Road Numbers704
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)14.67 / 4.47
Engine Wheelbase (ft / m)23.67 / 7.21
Ratio of driving wheelbase to overall engine wheebase 0.62
Overall Wheelbase (engine & tender) (ft / m)58.04 / 17.69
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)169,000 / 76,657
Engine Weight (lbs / kg)186,000 / 84,368
Tender Loaded Weight (lbs / kg)125,000 / 56,699
Total Engine and Tender Weight (lbs / kg)311,000 / 141,067
Tender Water Capacity (gals / ML)6000 / 22.73
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)10 / 9.10
Minimum weight of rail (calculated) (lb/yd / kg/m)70 / 35
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1270
Boiler Pressure (psi / kPa)185 / 12.80
High Pressure Cylinders (dia x stroke) (in / mm)22" x 28" / 559x711
Tractive Effort (lbs / kg)42,621 / 19332.58
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.97
Heating Ability
Firebox Area (sq ft / m2)172 / 15.98
Grate Area (sq ft / m2)46.70 / 4.34
Evaporative Heating Surface (sq ft / m2)2650 / 246.19
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2650 / 246.19
Evaporative Heating Surface/Cylinder Volume215.11
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation8640
Same as above plus superheater percentage8640
Same as above but substitute firebox area for grate area31,820
Power L14393
Power MT229.23

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