Peoria & Pekin Union 4-4-0 "American" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class B1 (Locobase 8882)

Data from Peoria & Pekin Union 6 - 1925 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

The diagram book says this little Eight-wheeler was built at the shops in 1915. In fact, it was REbuilt by the shops from an 1879 Chicago & North Western locomotive (numbered 352 by the C&NW)..

Specifications by Steve Llanso of Sweat House Media
Locobase ID8882
RailroadPeoria & Pekin Union
Number in Class1
Road Numbers15
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 8.50'
Engine Wheelbase22.42'
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender)51.71'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers56100 lbs
Engine Weight86400 lbs
Tender Light Weight80000 lbs
Total Engine and Tender Weight166400 lbs
Tender Water Capacity4100 gals
Tender Fuel Capacity (oil/coal)7.5 tons
Minimum weight of rail (calculated)47 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter63"
Boiler Pressure160 psi
Cylinders (dia x stroke)18" x 24"
Tractive Effort16786 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.34
Heating Ability
Firebox Area125.50 sq. ft
Grate Area19.70 sq. ft
Evaporative Heating Surface1118 sq. ft
Superheating Surface
Combined Heating Surface1118 sq. ft
Evaporative Heating Surface/Cylinder Volume158.16
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3152
Same as above plus superheater percentage3152
Same as above but substitute firebox area for grate area20080
Power L14149
Power MT326.10

If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.