Builder info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004. Works numbers were 1825-1826.
Odd arrangement and odd-looking engine. It had a high cab with windows all around, wagon top boiler sharply coned to a slender boiler.
The C&NP conducted commuter operations out of Chicago. The development of an electric railway and related commuter service in Chicago is a complicated story laid out by David J. Fiore in http://www.shore-line.org/FirstAndFastest/content/1902_AEC_Xing_Dispute.html (viewed 5 Aug 2004)
For Locobase's purpose, suffice to say that the C&NP, whose commuter service dated back to 1881, leased that service to the newly created Suburban Railroad in 1896 and the C&NP reorganized as the Chicago Terminal Transfer in July 1897. Our pair of suburban tanks kept their C&NP numbers.
The two later operated on the Chicago, Cincinnati & Louisville (The Straight Line) in 1902, having been renumbered 25-26. The CC&L was built as an independent line running diagonally through Indiana and Ohio to Cincinnati (it never got to Louisville). It failed not long after its inauguration and the line was absorbed by the Chesapeake & Ohio in 1911. At that point, the C & O took #25 as 1008, while 26 was sold to J. Joseph Brothers in 1911.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Chicago & Northern Pacific|
|Number in Class||2|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.25|
|Overall Wheelbase (engine & tender)||28.50'|
|Axle Loading (Maximum Weight per Axle)|
|Weight on Drivers||56000 lbs|
|Engine Weight||100000 lbs|
|Tender Light Weight|
|Total Engine and Tender Weight||100000 lbs|
|Tender Water Capacity||1600 gals|
|Tender Fuel Capacity (oil/coal)||3 tons|
|Minimum weight of rail (calculated)||47 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||165 psi|
|Cylinders (dia x stroke)||15" x 22"|
|Tractive Effort||12180 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.60|
|Firebox Area||112 sq. ft|
|Grate Area||19.60 sq. ft|
|Evaporative Heating Surface||766 sq. ft|
|Combined Heating Surface||766 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||170.23|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||3234|
|Same as above plus superheater percentage||3234|
|Same as above but substitute firebox area for grate area||18480|