The new locomotives were built by the Baldwin Locomotive Works and were delivered in 1926. These locomotives were designated as Class J-1 and assigned road numbers 701 through 710. They had 63" diameter drivers, 30" x 32" cylinders, a 190 psi boiler pressure, they exerted 73,825 pounds of tractive effort and each weighed 401,480 pounds.
C of G added two Nicholson thermic syphons of 88 square feet and three arch tubes of 27 square feet to the basic USRA "Santa Fe-Heavy" design which resulted in a huge firebox heating surface. The Cole-formula cylinder horsepower rating was 3,082 HP. A 15" piston valves supplied to steam to the large cylinders and there was 6,518 square feet of combined heating surface.
In 1926, the C of G traded ten "Mallets" to the Illinois Central for seven "Santa Fe" locomotives which were put on the roster as road numbers 771 through 777. In 1942, two more second-hand 2-10-2s were added as road numbers 711 and 712. The last two were bought from the Chicago & East Illinois.
There are no surviving C of G 2-10-2 "Santa Fe" type locomotives.
|Class||Qty.||Road Numbers||From Other RR||Year Acquired||Year Built||Builder||Notes|
|J-1||10||701-710||1926||Baldwin||Number 710 scrapped in 1950. Numbers 701-709 scrapped during 1952 and 1953.|
|J-2||2||711-712||C&EI||1942||1918||Baldwin||Bought from the C&EI in 1942. Numbers 711-712 scrapped in 1950.|
|J-3||3||771-773||IC||1926||1916||ALCO||Acquired from the Illinois Central in 1926. Part of trade for .Mallets. number 790-799. Ex Illinois Central numbers 2601-2603. Numbers 771-773 scrapped between 1947 and 1953.|
|J-3||4||774-777||IC||1926||1918||ALCO||Acquired from the Illinois Central in 1926. Part of trade for .Mallets. number 790-799. Ex Illinois Central numbers 2604-2607. Numbers 774-777 scrapped in 1952-1953.|
Central of Georgia added two Nicholson thermic syphons of 88 sq ft (8.15 sq m) and three arch tubes of 27 sq ft (2.5 sq m) to the basic USRA heavy Santa Fe design; this resulted in a huge firebox heating surface when combined with the 121 sq ft (11.25 sq m) of the long combustion chamber. RAG calculated a Cole-formula cylinder horsepower rating of 3,082. 15" (381 mm) piston valves supplied to steam to the large cylinders. (Later C of Ga diagrams show slight differences in heating area.)
Drury (1993) comments that these engines "were much better suited to CofG's Birmingham route than the Mallets [2-6-6-2] and could be used on other lines as well." All but the middle driver on each side had flanges. A 8 October 1937 "Hereafter and Extras" note reveals that the class received Baldwin disc drivers as it says they are to be furnished without hub liners.
Except for 710, which was retired in May 1950, The J-1s all left service in 1952-1953.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Central of Georgia (CofGa)|
|Number in Class||10|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.52|
|Overall Wheelbase (engine & tender)||82.42'|
|Axle Loading (Maximum Weight per Axle)||62390 lbs|
|Weight on Drivers||309220 lbs|
|Engine Weight||401480 lbs|
|Tender Light Weight||208600 lbs|
|Total Engine and Tender Weight||610080 lbs|
|Tender Water Capacity||12000 gals|
|Tender Fuel Capacity (oil/coal)||16 tons|
|Minimum weight of rail (calculated)||103 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||190 psi|
|Cylinders (dia x stroke)||30" x 32"|
|Tractive Effort||73829 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.19|
|Firebox Area||504 sq. ft|
|Grate Area||88.30 sq. ft|
|Evaporative Heating Surface||5233 sq. ft|
|Superheating Surface||1285 sq. ft|
|Combined Heating Surface||6518 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||199.89|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||16777|
|Same as above plus superheater percentage||20132|
|Same as above but substitute firebox area for grate area||114912|