Kansas, Oklahoma & Gulf 2-10-2 "Santafe" Locomotives in the USA

The Kansas, Oklahoma & Gulf Railway largely consisted of a single line from Baxter Springs, Kansas, to Denison, Texas. The KO&G came under common control of the Muskogee Company in 1925, sharing common management with the Midland Valley Railroad and the Oklahoma City-Ada-Atoka Railway from 1930 to 1964.

The KO&G owed much of its latter existence to its status as a bridge line between the Missouri Pacific at Okay, Oklahoma and the Missouri Pacific-controlled Texas and Pacific Railway at Denison, Texas. This traffic was the main source of revenue for the KO&G and was the primary reason that the Missouri Pacific's Texas and Pacific Railway acquired it in 1964.

The Kansas, Oklahoma & Gulf bought five "Santa Fe" type locomotives in 1927 from the Baldwin Locomotive Works. These locomotives carried road numbers 500 through 504 and had 63" diameter drivers, 27" x 30" cylinders, a 200 psi boiler pressure, they exerted 59,014 pounds of tractive effort and each weighed 330,000 pounds.

There are no surviving KO&G 2-10-2 "Santa Fe" type locomotives.


Qty.Road NumbersYear BuiltBuilderNotes
5500-5041927BaldwinNumbers 500-504 were scrapped by the end of steam on the MP

Class Details by Steve Llanso of Sweat House Media

Class 500 (Locobase 6783)

Data from 1944 KO & G Locomotive Diagrams book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange and DeGolyer, Vol 77, pp. 634+. (Thanks to Chris Hohl for supplying the tender capacity.) A summary of the Muskogee Company empire appears in the Muskogee Company records, DeGolyer Library, Southern Methodist University, [], last accessed 26 April 2015.

Works numbers were 60128-60132 in August 1927.

The Muskogee Company's KOG's largest engines were these Santa Fes. They had the same grate area as the older Mikes, but had larger boilers. A combustion chamber added 89 sq ft (8.25 sq m) to the firebox's heating surface area. Clearly, the KOG was never a passenger line.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID6783
RailroadKansas, Oklahoma & Gulf (KO&G)
Number in Class5
Road Numbers500-504
Number Built5
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)22.33 / 6.81
Engine Wheelbase (ft / m)42 / 12.80
Ratio of driving wheelbase to overall engine wheebase 0.53
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)250,000 / 113,398
Engine Weight (lbs / kg)330,000 / 149,686
Tender Loaded Weight (lbs / kg)209,000 / 94,801
Total Engine and Tender Weight (lbs / kg)539,000 / 244,487
Tender Water Capacity (gals / ML)12,000 / 45.45
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)16 / 14.50
Minimum weight of rail (calculated) (lb/yd / kg/m)83 / 41.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)63 / 1600
Boiler Pressure (psi / kPa)200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)27" x 30" / 686x762
Tractive Effort (lbs / kg)59,014 / 26768.33
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.24
Heating Ability
Firebox Area (sq ft / m2)376 / 34.93
Grate Area (sq ft / m2)66.70 / 6.20
Evaporative Heating Surface (sq ft / m2)4202 / 390.38
Superheating Surface (sq ft / m2)952 / 88.44
Combined Heating Surface (sq ft / m2)5154 / 478.82
Evaporative Heating Surface/Cylinder Volume211.36
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation13,340
Same as above plus superheater percentage15,741
Same as above but substitute firebox area for grate area88,736
Power L115,475
Power MT682.33

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