The five K-5s used to build these "Hudsons" were bought from the American Locomotive Company in 1925 and were the only three-cylinder 2-8-2s on the Wabash.
Later, in 1946 and 1947, a pair of the two cylinder Class K-5s were also converted into "Hudsons" and were assigned road numbers 705 and 706.
All seven of the Class P-1 "Hudsons" were scrapped in 1956.
The engines were semi-streamlined with long "elephant ears" and given a light blue paint scheme with a broad white stripe along the running boards; the tenders received a similar paint job.
They ran until 1956.
|Specifications by Steve Llanso of Sweat House Media|
|Number in Class||7|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.34|
|Overall Wheelbase (engine & tender)||75.46'|
|Axle Loading (Maximum Weight per Axle)||65570 lbs|
|Weight on Drivers||196390 lbs|
|Engine Weight||374680 lbs|
|Tender Light Weight||208000 lbs|
|Total Engine and Tender Weight||582680 lbs|
|Tender Water Capacity||12000 gals|
|Tender Fuel Capacity (oil/coal)||16 tons|
|Minimum weight of rail (calculated)||109 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||220 psi|
|Cylinders (dia x stroke)||26" x 28"|
|Tractive Effort||44244 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.44|
|Firebox Area||341 sq. ft|
|Grate Area||71 sq. ft|
|Evaporative Heating Surface||4225 sq. ft|
|Superheating Surface||1051 sq. ft|
|Combined Heating Surface||5276 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||245.55|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||15620|
|Same as above plus superheater percentage||18744|
|Same as above but substitute firebox area for grate area||90024|