Pittsburgh, McKeesport & Yo NYC) 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class F-103 (Locobase 15803)

Data from P&LE 1 - 1908 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 45962-45966 in May 1909.

Built two years before the F-104 and F-105 superheated Ten-wheelers delivered to the Pittsburgh & Lake Erie (Locobase 7071), the F-103s had saturated boilers. They were soon superheated to the same specs as the F-104 and F-105.

Specifications by Steve Llanso of Sweat House Media
Locobase ID15,803
RailroadPittsburgh, McKeesport & Yo NYC)
Number in Class5
Road Numbers9205-9209
Number Built5
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft)15.83
Engine Wheelbase (ft)27
Ratio of driving wheelbase to overall engine wheebase 0.59
Overall Wheelbase (engine & tender) (ft)57.62
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)156,500
Engine Weight (lbs)206,900
Tender Loaded Weight (lbs)145,000
Total Engine and Tender Weight (lbs)351,900
Tender Water Capacity (gals)8400
Tender Fuel Capacity (oil/coal) (gals/tons)9
Minimum weight of rail (calculated) (lb/yd)87
Geometry Relating to Tractive Effort
Driver Diameter (in)72
Boiler Pressure (psi)200
High Pressure Cylinders (dia x stroke) (in)22" x 26"
Tractive Effort (lbs)29,712
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.27
Heating Ability
Firebox Area (sq ft)178
Grate Area (sq ft)50
Evaporative Heating Surface (sq ft)3269
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)3269
Evaporative Heating Surface/Cylinder Volume285.77
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation10,000
Same as above plus superheater percentage10,000
Same as above but substitute firebox area for grate area35,600
Power L18726
Power MT368.77

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