The driver diameter was later increased to 52". Although the pair was still in service in 1917, they had been retired by 1929.
Drury (1993) says these were originally built for the Detroit, Toledo & Ironton and sold to the Wabash in 1910-1911. He notes that the DT & I ordered a slew of Consolidations in 1905 but defaulted on the payments. The Wabash purchased 15 of them.
Unlike the I-3s, this class was not superheated. Their firebox heating surface did include 4 arch tubes measuring 26.5 sq ft in all.
When the Wabash superheated these Consolidations (see Locobase 5698 for the original layout), they didn't gain much power at speed. But, then, since they were short-haul, drag-freight engines that might not have been the point. As it was, Locobase suspects that fuel economy was the principal goal and that was most likely realized.
|Specifications by Steve Llanso of Sweat House Media|
|Number in Class||2||15||30|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.67||0.66||0.64|
|Overall Wheelbase (engine & tender)||52.25'||57.87'|
|Axle Loading (Maximum Weight per Axle)||42000 lbs||52450 lbs|
|Weight on Drivers||119000 lbs||154500 lbs||198500 lbs|
|Engine Weight||132000 lbs||174500 lbs||224100 lbs|
|Tender Light Weight||77000 lbs||110000 lbs||154000 lbs|
|Total Engine and Tender Weight||209000 lbs||284500 lbs||378100 lbs|
|Tender Water Capacity||5000 gals||5000 gals||8000 gals|
|Tender Fuel Capacity (oil/coal)||12 tons||tons|
|Minimum weight of rail (calculated)||50 lb/yard||64 lb/yard||83 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||185 psi||200 psi||210 psi|
|Cylinders (dia x stroke)||20" x 24"||19.5" x 28"||22.5" x 30"|
|Tractive Effort||30192 lbs||31207 lbs||46741 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||3.94||4.95||4.25|
|Firebox Area||157 sq. ft||182.50 sq. ft||214 sq. ft|
|Grate Area||24 sq. ft||44 sq. ft||50.50 sq. ft|
|Evaporative Heating Surface||1892 sq. ft||2393 sq. ft||2683 sq. ft|
|Superheating Surface||606 sq. ft|
|Combined Heating Surface||1892 sq. ft||2393 sq. ft||3289 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||216.81||247.25||194.34|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||4440||8800||10605|
|Same as above plus superheater percentage||4440||8800||12514|
|Same as above but substitute firebox area for grate area||29045||36500||53029|