Most of the orders recorded in Baldwin's books were filled for the original purchaser. But the eight locomotives intended for the Morelia y Tacambaro in Guanajunto, Mexico were redirected to several other railroads.
Two went to the MJ&KC which was reorganized in 1909 as the New Orleans, Mobile & Chicago and in 1917 that name was supplanted by the Gulf, Mobile & Northern. The GM&N sold the 10 to locomotive rebuilder/reseller Birmingham Rail & Locomotive in 1925. BR & L found a buyer in May 1928 in the Savannah & Northwestern, which renumbered the engine 226. The S & N rebuilt the 226 as a freight engine and renumbered it 114.
In the same year as the 10's disposal, the GM&N sold the 12 to another locomotive rebuilder/reseller Southern Iron & Equipment. SI & E's customer turned out to be the Marianna Long Pine Company in February 1927.
In 1909, the MJ & KC was reorganized as the New Orleans, Mobile & Chicago and in 1917 that name was supplanted by the Gulf, Mobile & Northern. More than two decades later the GM & N was combined with other railroads to form the Gulf, Mobile & Ohio in 1940
Following up the assembly of a larger stud of 19" x 24" Ten-wheelers, the MJ & KC bought this quartet with more cylinder volume thanks to a longer stroke and 29 more tubes in the boiler.
When the MJ & KC's successor New Orleans, Mobile & Chicago was absorbed by the Gulf, Mobile & Northern in 1917, the four were renumbered by adding a 1 and eventually rebuilt with 63" drivers.
|Principal Dimensions by Steve Llanso of Sweat House Media|
|Railroad||Mobile, Jackson & Kansas City (GM & N)||Mobile, Jackson & Kansas City (GM & N)||Mobile, Jackson & Kansas City (GM & N)|
|Number in Class||2||6||4|
|Road Numbers||10, 12||70-75, 79-84||85-88|
|Builder||Burnham, Williams & Co||Burnham, Williams & Co||Burnham, Williams & Co|
|Locomotive Length and Weight|
|Driver Wheelbase (ft / m)||14.25 / 4.34||14 / 4.27||14.25 / 4.34|
|Engine Wheelbase (ft / m)||24.92 / 7.60||24 / 7.32||24.25 / 7.39|
|Ratio of driving wheelbase to overall engine wheebase||0.57||0.58||0.59|
|Overall Wheelbase (engine & tender) (ft / m)|
|Axle Loading (Maximum Weight per Axle) (lbs / kg)|
|Weight on Drivers (lbs / kg)||88,000 / 39,916||111,000 / 50,349||113,500 / 51,483|
|Engine Weight (lbs / kg)||120,000 / 54,431||140,000 / 63,503||146,500 / 66,451|
|Tender Loaded Weight (lbs / kg)||80,000 / 36,287||100,000 / 40,823||120,000 / 54,431|
|Total Engine and Tender Weight (lbs / kg)||200,000 / 90,718||240,000 / 104,326||266,500 / 120,882|
|Tender Water Capacity (gals / ML)||4000 / 15.15||5000 / 17.05||6000 / 22.73|
|Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)||8 / 7.30|
|Minimum weight of rail (calculated) (lb/yd / kg/m)||49 / 24.50||62 / 31||63 / 31.50|
|Geometry Relating to Tractive Effort|
|Driver Diameter (in / mm)||54 / 1372||56 / 1422||56 / 1422|
|Boiler Pressure (psi / kPa)||180 / 12.40||200 / 13.80||200 / 13.80|
|High Pressure Cylinders (dia x stroke) (in / mm)||18" x 24" / 457x610||19" x 24" / 483x610||19" x 26" / 483x660|
|Tractive Effort (lbs / kg)||22,032 / 9993.56||26,301 / 11929.95||28,493 / 12924.22|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||3.99||4.22||3.98|
|Firebox Area (sq ft / m2)||144 / 13.38||174.70 / 16.24||175.50 / 16.30|
|Grate Area (sq ft / m2)||17.30 / 1.61||24.87 / 2.31||24.70 / 2.29|
|Evaporative Heating Surface (sq ft / m2)||1788 / 166.17||2143 / 199.16||2340 / 217.39|
|Superheating Surface (sq ft / m2)|
|Combined Heating Surface (sq ft / m2)||1788 / 166.17||2143 / 199.16||2340 / 217.39|
|Evaporative Heating Surface/Cylinder Volume||252.95||272.10||274.26|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||3114||4974||4940|
|Same as above plus superheater percentage||3114||4974||4940|
|Same as above but substitute firebox area for grate area||25,920||34,940||35,100|