Akron, Canton & Youngstown 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class M (Locobase 7617)

Data from the AC&Y 7 -1942 locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also DeGolyer, Vol 71, pp. 1-19. Works numbers were 55566-55567 in August 1922 and 56848-56850 in August 1923.

Among the few road engines the AC & Y bought new were these five Consolidations. The first two had 42 sq ft (3.9 sq m) of thermic syphons, 10" (254 mm) piston valves.

The second batch were slightly heavier and had 4 more square feet of thermic syphons, but otherwise identical except for detail differences. One of the latter was the lengthening of the cab by eight inches (203 mm), four in front, four in back.

Specifications by Steve Llanso of Sweat House Media
Locobase ID7617
RailroadAkron, Canton & Youngstown
Number in Class5
Road Numbers320-324
Number Built5
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase15.50'
Engine Wheelbase23.50'
Ratio of driving wheelbase to overall engine wheebase 0.66
Overall Wheelbase (engine & tender)56.17'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers133200 lbs
Engine Weight149720 lbs
Tender Light Weight133280 lbs
Total Engine and Tender Weight283000 lbs
Tender Water Capacity6800 gals
Tender Fuel Capacity (oil/coal)12 tons
Minimum weight of rail (calculated)56 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter50"
Boiler Pressure180 psi
Cylinders (dia x stroke)20" x 26"
Tractive Effort31824 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.19
Heating Ability
Firebox Area164 sq. ft
Grate Area36.70 sq. ft
Evaporative Heating Surface1648 sq. ft
Superheating Surface442 sq. ft
Combined Heating Surface2090 sq. ft
Evaporative Heating Surface/Cylinder Volume174.32
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6606
Same as above plus superheater percentage7993
Same as above but substitute firebox area for grate area35719
Power L110228
Power MT677.14


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