Pacific Coast 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 105 (Locobase 12715)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 26, p 287; Volume 27, pp. 116, 163; and Volume 28, p. 182 . Works numbers 23968 in March 1904, 24696 in September, 24847 in December, 25043 in January 1905, and 27225 in January 1906.

This quintet of Consolidations served the PCR for 30 years before the last three were retired in 1935. 109 was sold for scrap; 107-108 were retained for parts before being scrapped in 1940 (108) and 1948 (107). 106 crashed into a gasoline truck in August 1938 and was scrapped in October. 105 was scrapped in 1943.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12,715
RailroadPacific Coast
Number in Class5
Road Numbers105-109
Number Built5
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)11.50
Engine Wheelbase (ft)18
Ratio of driving wheelbase to overall engine wheebase 0.64
Overall Wheelbase (engine & tender) (ft)
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)64,000
Engine Weight (lbs)72,000
Tender Loaded Weight (lbs)55,000
Total Engine and Tender Weight (lbs)127,000
Tender Water Capacity (gals)2900
Tender Fuel Capacity (oil/coal) (gals/tons)1500
Minimum weight of rail (calculated) (lb/yd)27
Geometry Relating to Tractive Effort
Driver Diameter (in)36
Boiler Pressure (psi)160
High Pressure Cylinders (dia x stroke) (in)16" x 20"
Tractive Effort (lbs)19,342
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.31
Heating Ability
Firebox Area (sq ft)88.70
Grate Area (sq ft)14.10
Evaporative Heating Surface (sq ft)1026
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1026
Evaporative Heating Surface/Cylinder Volume220.45
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2256
Same as above plus superheater percentage2256
Same as above but substitute firebox area for grate area14,192
Power L13031
Power MT417.64

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