Locobase 12870 shows the first five in a group of small Ten-wheelers that operated on this eastern Georgia shortline. Seven years after that quintet had been ordered, the GC & P returned for two more that had the same cylinder volume and driver diameter. But the boiler pressure increased by 20 psi, coal fuel was substituted for wood, and the valves were now actuated by the increasingly popular Walschaert outside radial gear.
When the GC & P began selling off its assets as part of its closure in 1918-1919, these two joined four of the earlier locomotives at the locomotive rebuilder/reseller Georgia Car & Locomotive. Both were sold to lumber companies. 66 went to J Ray Arnold Lumber Coas their 100 in March 1920, then Putnam Lumber. 67 joined 63 at Lyon Lumber in Garyville, La in December 1919, where it took #9 and joined the #10 (ex-71 described on Locobase 12872)..
Typical Ten-wheel short line freighters that represented a slightly larger version of the 1913 Baldwins described on Locobase 12871.
When the GC&P was sold to Collins and Ludowici in October 1919, the two Ten-wheelers went to locomotive rebuilder/reseller Georgia Car & Locomotive. GC&L quickly found buyers for each. 70 went to the Marianna & Blountstown and 71 began operating on Lyons Lumber tracks as the Garyville, La company's #10 in company with the #9 (ex-GC&P 67).
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Georgia Coast & Piedmont||Georgia Coast & Piedmont|
|Number in Class||2||2|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.56||0.55|
|Overall Wheelbase (engine & tender)||48.17'||49.62'|
|Axle Loading (Maximum Weight per Axle)|
|Weight on Drivers||72000 lbs||87000 lbs|
|Engine Weight||100000 lbs||115000 lbs|
|Tender Light Weight||90000 lbs||90000 lbs|
|Total Engine and Tender Weight||190000 lbs||205000 lbs|
|Tender Water Capacity||4500 gals||4500 gals|
|Tender Fuel Capacity (oil/coal)||6 tons||6 tons|
|Minimum weight of rail (calculated)||40 lb/yard||48 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||200 psi||180 psi|
|Cylinders (dia x stroke)||16" x 24"||17" x 26"|
|Tractive Effort||18651 lbs||20529 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||3.86||4.24|
|Firebox Area||93 sq. ft||121 sq. ft|
|Grate Area||15 sq. ft||20.60 sq. ft|
|Evaporative Heating Surface||1225 sq. ft||1362 sq. ft|
|Combined Heating Surface||1225 sq. ft||1362 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||219.34||199.40|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||3000||3708|
|Same as above plus superheater percentage||3000||3708|
|Same as above but substitute firebox area for grate area||18600||21780|