Chicago, Burlington & Quincy 2-8-8-2 "Chesapeake" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class T-3 (Locobase 5476)

Data from locomotive diagram published on Vernon Beck's website -- (accessed 22 March 2003). See also DeGolyer, Volume 38, p. 197.Works number was 36795 in August 1911.

Firebox heating surface included 109.3 sq ft of combustion chamber area. The Baldwin specs say that the engine was ordered with 395 2 1/4" tubes and was fitted with a feedwater heater in the forward end of the boiler that contributed 1,461 sq ft of surface area. A very small reheater in that same section chipped in 160 sq ft.

Drury (1993) doesn't say much about this lone Mikado Mallet, just that it was used for hump work at Galesburg and was later converted to oil-burning and transferred to Alliance, Nebraska from which it was retired and scrapped in August 1934.

Specifications by Steve Llanso of Sweat House Media
Locobase ID5476
RailroadChicago, Burlington & Quincy (CB&Q)
Number in Class1
Road Numbers4200
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase15'
Engine Wheelbase58.20'
Ratio of driving wheelbase to overall engine wheebase 0.26
Overall Wheelbase (engine & tender)83'
Axle Loading (Maximum Weight per Axle)52400 lbs
Weight on Drivers399900 lbs
Engine Weight441400 lbs
Tender Light Weight212700 lbs
Total Engine and Tender Weight654100 lbs
Tender Water Capacity12000 gals
Tender Fuel Capacity (oil/coal)4365 gals
Minimum weight of rail (calculated)83 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter56"
Boiler Pressure200 psi
High Pressure Cylinders (dia x stroke)26" x 32"
Low Pressure Cylinders (dia x stroke)40" x 32" (2)
Tractive Effort92328 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.33
Heating Ability
Firebox Area363 sq. ft
Grate Area84 sq. ft
Evaporative Heating Surface5283 sq. ft
Superheating Surface
Combined Heating Surface5283 sq. ft
Evaporative Heating Surface/Cylinder Volume268.66
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation16800
Same as above plus superheater percentage16800
Same as above but substitute firebox area for grate area72600
Power L12847
Power MT125.56


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