Pearl & Leaf Rivers 4-6-0 "Ten-Wheeler" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 8 (Locobase 11747)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 25, p. 128. Works number was 21220 in November 1902.

The P & LR didn't enjoy an independent existence for very long after they took delivery of this modestly scaled Ten-wheeler. In 1904, the P & LR had expanded enough to adopt a new name. As the Mississippi Central, the company made room on their motive power roster as their 111 and served the MC for another 26 years before its scrapping in January 1930.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID11,747
RailroadPearl & Leaf Rivers
Number in Class1
Road Numbers8 / 111
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)14.25 / 4.34
Engine Wheelbase (ft / m)24.92 / 7.60
Ratio of driving wheelbase to overall engine wheebase 0.57
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)93,000 / 42,184
Engine Weight (lbs / kg)124,000 / 56,246
Tender Loaded Weight (lbs / kg)72,000 / 32,659
Total Engine and Tender Weight (lbs / kg)196,000 / 88,905
Tender Water Capacity (gals / ML)3500 / 13.26
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)52 / 26
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)56 / 1422
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)21,245 / 9636.58
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.38
Heating Ability
Firebox Area (sq ft / m2)145.60 / 13.53
Grate Area (sq ft / m2)17.10 / 1.59
Evaporative Heating Surface (sq ft / m2)1961 / 182.25
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1961 / 182.25
Evaporative Heating Surface/Cylinder Volume277.42
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3078
Same as above plus superheater percentage3078
Same as above but substitute firebox area for grate area26,208
Power L16391
Power MT454.51

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Wes Barris