Following a year after the Selwyn Eddy, this unamed TPL stablemate had a bigger boiler and commensurately enlarged (but still small) wood-burning grate and firebox. These generated the steam for cylinders with 2" greater diameters. The tender held 3 cords of wood fuel.
After decades in service, the 29 was retired in 1961 not long after a major overhaul. Almost 25 years later, the TPL donated the 29 to the Northern Counties Logging Interpretive Association (NCLIA) in 1986. Its relatively short time of operation after the major overhaul and its storage for decades in a shed encouraged the NCLIA to consider rebuilding the engine.
Edward L Paine began logging in Wisconsin in 1853 and his sons would carry the business into the 20th Century as a major timber supplier based in Oshkosh. In the mid-1920s the company was still prosperous to erect workers' housing and an accompanying Paine Thrift Bank, which functioned something like a credit union.
This Prairie only operated for Paine for about 15 years before being sold to Langlade Lumber in 1919.
This was a smaller Prairie than the two that preceded it on the TPL, but it featured a change to oil fuel and a higher-pressure boiler.
Like the others, the 30 served for decades before being scrapped in 1955.
The Timberman article goes into considerable detail about what made this Prairie so suitable for logging operations. The 2-6-2 layout, combined with the equalizing setup, ensured "...a steady riding locomotive which is easy on both rails and flanges when traversing curves." Having already noted that the PCL's routes included 6% grades and 35-degree curves, the report comments on the boiler's qualities: "High steaming capacity is essential to successful work on heavy grades." Their characterization of the firebox as possessing "ample volume" may be overstating the case, but the report highlights the longer tubes. [Not mentioned but of undoubted value must have been the high factor of adhesion.] And the Radley & Hunter wide-mouthed stack is eminently suited to arresting sparks from the wood-burning firebox.
The locomotive's namesake, Selwyn Eddy, was one of the founders of the PCL, a company that exploited the Redwood Empire's great expanse of tall trees. The 27 operated for the TPL until its scrapping in 1955.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Pacific Lumber Company||Paine Lumber Company||Pacific Lumber Company||Pacific Lumber Company|
|Number in Class||1||1||1||1|
|Builder||Baldwin||Burnham, Williams & Co||Baldwin||Burnham, Williams & Co|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.39||0.33||0.35||0.39|
|Overall Wheelbase (engine & tender)||47.92'||46.37'||47.92'|
|Axle Loading (Maximum Weight per Axle)|
|Weight on Drivers||90000 lbs||76000 lbs||90000 lbs||81750 lbs|
|Engine Weight||120000 lbs||100000 lbs||120000 lbs||110900 lbs|
|Tender Light Weight||60000 lbs||70000 lbs||60000 lbs|
|Total Engine and Tender Weight||180000 lbs||190000 lbs||170900 lbs|
|Tender Water Capacity||3500 gals||3000 gals||3000 gals||3000 gals|
|Tender Fuel Capacity (oil/coal)||1000 gals||gals|
|Minimum weight of rail (calculated)||50 lb/yard||42 lb/yard||50 lb/yard||45 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||160 psi||160 psi||180 psi||180 psi|
|Cylinders (dia x stroke)||18" x 24"||16" x 24"||17" x 24"||16" x 24"|
|Tractive Effort||20337 lbs||18165 lbs||23070 lbs||18078 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.43||4.18||3.90||4.52|
|Firebox Area||127.70 sq. ft||107 sq. ft||116 sq. ft||114.60 sq. ft|
|Grate Area||17.40 sq. ft||16 sq. ft||16 sq. ft||16 sq. ft|
|Evaporative Heating Surface||1765 sq. ft||1410 sq. ft||1556 sq. ft||1578 sq. ft|
|Combined Heating Surface||1765 sq. ft||1410 sq. ft||1556 sq. ft||1578 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||249.70||252.46||246.79||282.54|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||2784||2560||2880||2880|
|Same as above plus superheater percentage||2784||2560||2880||2880|
|Same as above but substitute firebox area for grate area||20432||17120||20880||20628|