Hamilton Coke & Iron Company 2-8-0 "Consolidation" Locomotives of 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.

Specifications by Steve Llanso of Sweat House Media
Locobase ID15490
RailroadHamilton Coke & Iron Company
Number in Class1
Road Numbers704
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase14.67'
Engine Wheelbase23.67'
Ratio of driving wheelbase to overall engine wheebase 0.62
Overall Wheelbase (engine & tender)58.04'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers169000 lbs
Engine Weight186000 lbs
Tender Light Weight125000 lbs
Total Engine and Tender Weight311000 lbs
Tender Water Capacity6000 gals
Tender Fuel Capacity (oil/coal)10 tons
Minimum weight of rail (calculated)70 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter50"
Boiler Pressure185 psi
Cylinders (dia x stroke)22" x 28"
Tractive Effort42621 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.97
Heating Ability
Firebox Area172 sq. ft
Grate Area46.70 sq. ft
Evaporative Heating Surface2650 sq. ft
Superheating Surface
Combined Heating Surface2650 sq. ft
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 area31820
Power L14393
Power MT229.23

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