Quanah, Acme & Pacific 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 101 (Locobase 13509)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 51, p. 291. See Locobase 13508 for a brief history of the QA & P. Works number was 42200 in July 1915.

As the Quanah Route developed its cross-Texas traffic, a Consolidation was an inevitable addition to any such aspiring line. Like the earlier Baldwin Ten-wheelers shown in Locobase 13508, this was a mid-sized example at best with a relatively modest amount of superheat.

(The Quanah Route would later operate an undeliverable Russian decapod as their 1628.)

Specifications by Steve Llanso of Sweat House Media
Locobase ID13509
RailroadQuanah, Acme & Pacific
Number in Class1
Road Numbers101
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase14.25'
Engine Wheelbase21.83'
Ratio of driving wheelbase to overall engine wheebase 0.65
Overall Wheelbase (engine & tender)55.50'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers140600 lbs
Engine Weight156400 lbs
Tender Light Weight140000 lbs
Total Engine and Tender Weight296400 lbs
Tender Water Capacity7000 gals
Tender Fuel Capacity (oil/coal)12 tons
Minimum weight of rail (calculated)59 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter52"
Boiler Pressure185 psi
Cylinders (dia x stroke)20" x 26"
Tractive Effort31450 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.47
Heating Ability
Firebox Area167 sq. ft
Grate Area31.40 sq. ft
Evaporative Heating Surface1668 sq. ft
Superheating Surface319 sq. ft
Combined Heating Surface1987 sq. ft
Evaporative Heating Surface/Cylinder Volume176.44
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5809
Same as above plus superheater percentage6738
Same as above but substitute firebox area for grate area35838
Power L19114
Power MT571.63

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