These 2-10-2s were conveyed to the C&O in 1947 and were renumbered with C&O numbers 2975 through 2989. At 324,000 pounds they were among the lightest and had a relatively small boiler and cylinder size. The fire box heating surface was good size and it had 89 square feet of thermic siphons and 19.5 square feet of arch tubes. Also of note were the leading and trailing wheels, at 33" in diameter they about 10 inches smaller most in use.
In 1920, the Pere Marquette bought two second hand "Santa Fe" type locomotives from the Hocking Valley Railroad.
There are no surviving Pere Marquette 2-10-2 "Santa Fe" type locomotives.
|Class||Qty.||Road Numbers||From Other RR||Year Acquired||Year Built||Builder||Notes|
|SF||15||1101-1115||1918||ALCO||Numbers 1101-1115 became C&O numbers 2975-2989 and scrapped between 1949 and 1952.|
|SF-6||2||1198-1199||Hocking Valley||1930||1919||Baldwin||Number 1198 & 1199 bought from the Hocking Valley in 1930. They were HV numbers 141 & 143. Became C&O 2960 & 2961 and scrapped in 1949.|
Passed along to the C&O after the 1947 merger and renumbered 2975-2989. Among the lightest Santa Fes in service in any US railroad with the smallest boiler and relatively modest cylinder dimensions. Firebox heating surface was generous and included 89 sq ft of thermic syphons and 19.5 sq ft of arch tubes.
The Pere Marquette Historical Society website page http://www.pmhistsoc.org/cgi-bin/gallery.pl?f=locos-1108-110737, last accessed 8 March 2008, shows a William R Dewey photo of 1108 and makes the following observation: "Most notable when looking at them broadside were the 33-inch pilot and trailing wheels, which were a good ten inches smaller than most 2-10-2s' of the day." Another feature of note was the sand dome over the first axle, which was tall and drum-like.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Pere Marquette (PM)|
|Number in Class||15|
|Locomotive Length and Weight|
|Driver Wheelbase (ft)||20.50|
|Engine Wheelbase (ft)||47.58|
|Ratio of driving wheelbase to overall engine wheebase||0.43|
|Overall Wheelbase (engine & tender) (ft)||90.33|
|Axle Loading (Maximum Weight per Axle) (lbs)|
|Weight on Drivers (lbs)||264,930|
|Engine Weight (lbs)||324,000|
|Tender Loaded Weight (lbs)||224,100|
|Total Engine and Tender Weight (lbs)||548,100|
|Tender Water Capacity (gals)||16,000|
|Tender Fuel Capacity (oil/coal) (gals/tons)||20|
|Minimum weight of rail (calculated) (lb/yd)||88|
|Geometry Relating to Tractive Effort|
|Driver Diameter (in)||57|
|Boiler Pressure (psi)||200|
|High Pressure Cylinders (dia x stroke) (in)||26" x 32"|
|Tractive Effort (lbs)||64,516|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.11|
|Firebox Area (sq ft)||394.50|
|Grate Area (sq ft)||66.70|
|Evaporative Heating Surface (sq ft)||3504|
|Superheating Surface (sq ft)||835|
|Combined Heating Surface (sq ft)||4339|
|Evaporative Heating Surface/Cylinder Volume||178.19|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||13,340|
|Same as above plus superheater percentage||15,875|
|Same as above but substitute firebox area for grate area||93,891|