CE & LS 4-4-0 "American" Locomotives in the USA

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Class Details by Steve Llanso of Sweat House Media

Class H7 (Locobase 9885)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

Specifications by Steve Llanso of Sweat House Media
ClassH7
Locobase ID9885
RailroadCE & LS (Milwaukee Road)
CountryUSA
Whyte4-4-0
Number in Class3
Road Numbers718-720
GaugeStd
Number Built3
BuilderRhode Island
Year1886
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.50 / 2.59
Engine Wheelbase (ft / m)23.25 / 7.09
Ratio of driving wheelbase to overall engine wheebase 0.37
Overall Wheelbase (engine & tender) (ft / m)45.54 / 13.88
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)60,000 / 27,216
Engine Weight (lbs / kg)96,300 / 43,681
Tender Loaded Weight (lbs / kg)60,000 / 27,216
Total Engine and Tender Weight (lbs / kg)156,300 / 70,897
Tender Water Capacity (gals / ML)2700 / 10.23
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)5 / 4.50
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 25
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)62 / 1575
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)15,991 / 7253.40
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.75
Heating Ability
Firebox Area (sq ft / m2)127 / 11.80
Grate Area (sq ft / m2)17.20 / 1.60
Evaporative Heating Surface (sq ft / m2)1361 / 126.49
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1361 / 126.49
Evaporative Heating Surface/Cylinder Volume192.54
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2580
Same as above plus superheater percentage2580
Same as above but substitute firebox area for grate area19,050
Power L14377
Power MT321.65