Denver & Salt Lake / Denver, Northwestern & Pacific / Drake & Stratton Limited 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 42 (Locobase 11435)

Data from "Locomotive Building," The Railroad Gazette, Vol XLI, No 14 (5 October 1906), p. 88.

This railway was renamed Denver & Salt Lake in 1912.

Class 44 (Locobase 11470)

Data from "Locomotive Building," The Railway Age Gazette, Vol XLVIII, No 13 (1 April 1910), p. 923.

Adding to the Consolidation stud that had already been assembled (see Locobase 11435), this batch adopted Walschaert outside radial valve gear. This railway was renamed Denver & Salt Lake in 1912.

Class C2 (Locobase 12803)

Data from D&SL 1 -1932 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Class E M Cummings (Locobase 12053)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 18, p 114. Works numbers were 13058 in November 1892 and 13275 in March 1893.

D & S was a contracting firm that bought this pair of low-drivered Consolidations.

They sold the 23 to the Charleston, Clendennin & Sutton of West Virginia. There followed a string of sales for the 23: CC & S to the Coal & Coke Railroad in May 1903 as their #9. The C & C operated the engine for more than 15 years before selling the 9 to Middle Creek Railroad in 1919, where it was renumbered 4.

The 24 was sold to the McDonald & Onderdonk, New York City contractors. Some time later, M & O sold the engine to the locomotive rebuilder/reseller Birmingham Rail & Locomotive. BR & L rebuilt the 24 with 20" cylinders and sold the locomotive to the Davidson Ingram Lumber Company of Houston, Tex. The DILC sold the engine to Benford Lumber inVirginia and that company later sold it to the Mardez Lumber.

Specifications by Steve Llanso of Sweat House Media
Class4244C2E M Cummings
Locobase ID11435 11470 12803 12053
RailroadDenver, Northwestern & Pacific (D&SL)Denver, Northwestern & Pacific (D&SL)Denver & Salt LakeDrake & Stratton Limited
Number in Class212122
Road Numbers112-12323-24
Number Built212122
BuilderAlco-SchenectadyAlco-SchenectadyAlco-SchenectadyBurnham, Williams & Co
Valve GearStephensonWalschaertWalschaertStephenson
Locomotive Length and Weight
Driver Wheelbase15.67'13'
Engine Wheelbase32.92'20.17'
Ratio of driving wheelbase to overall engine wheebase 0.48 0.64
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers186000 lbs195000 lbs195000 lbs80000 lbs
Engine Weight210000 lbs219000 lbs219000 lbs92000 lbs
Tender Light Weight157000 lbs
Total Engine and Tender Weight376000 lbs
Tender Water Capacity8000 gals8000 gals8000 gals4000 gals
Tender Fuel Capacity (oil/coal)12 tons12 tons15 tons tons
Minimum weight of rail (calculated)78 lb/yard81 lb/yard81 lb/yard33 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter56"55"55"44"
Boiler Pressure210 psi210 psi210 psi160 psi
Cylinders (dia x stroke)22" x 28"22" x 28"22" x 28"17" x 24"
Tractive Effort43197 lbs43982 lbs43982 lbs21439 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.31 4.43 4.43 3.73
Heating Ability
Firebox Area213 sq. ft200 sq. ft113 sq. ft
Grate Area54.20 sq. ft54.20 sq. ft54.20 sq. ft19.60 sq. ft
Evaporative Heating Surface3505 sq. ft3538 sq. ft3541 sq. ft1153 sq. ft
Superheating Surface
Combined Heating Surface3505 sq. ft3538 sq. ft3541 sq. ft1153 sq. ft
Evaporative Heating Surface/Cylinder Volume284.52287.20287.44182.87
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1138211382113823136
Same as above plus superheater percentage1138211382113823136
Same as above but substitute firebox area for grate area0447304200018080
Power L10719370963197
Power MT0325.29320.90352.41

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