Mississippi Central 4-6-0 "Ten-Wheeler" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 108 (Locobase 12806)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 28, p. 54. See also the Mississippi Rails website's entry on the MC at http://www.msrailroads.com/MSC.htm, last accessed 2 July 2011. Baldwin works numbers were 25665 in May 1905; 26733, 26740 in October; 30353 in March 1907; and 31022-31023, 31037 in July.

The MC was the name given to the Pearl & Leaf Rivers Railroad as it expanded eastward. At its full extent, the line stretched from Natchez on the Mississippi through Brookhaven to Hattiesburg. Beyond that city, the Natchez Route bent south to Pines, which lay on the road to Pascagoula on the Gulf, but the line never advanced any further. Another branch reached Tallahala to the northeast. From Natchez to Pines, the MC stretched 164 miles.

This set of Ten-wheelers were sized for freight operations. Two of the engines were sold, the 110 to Lamar Lumber Company in May 1930, the other to Jaffe-Wohl. Scrappings occurred over a long period. 109 went first in August 1926, 108 in 1927. 112 followed in February 1934. 113-114 were scrapped at the same time in December 1942.

Although it managed to survive the Great Depression, the MC's traffic declined steadily. The mid-1960s saw the siting of a new paper mill on a rival railroad and that meant the end of the MC, whose assets were bought by the Illinois Central.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID12,806
RailroadMississippi Central
Number in Class7
Road Numbers108-110, 112-115
Number Built7
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)14.25 / 4.34
Engine Wheelbase (ft / m)24.25 / 7.39
Ratio of driving wheelbase to overall engine wheebase 0.59
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)111,500 / 50,576
Engine Weight (lbs / kg)140,000 / 63,503
Tender Loaded Weight (lbs / kg)100,000 / 45,359
Total Engine and Tender Weight (lbs / kg)240,000 / 108,862
Tender Water Capacity (gals / ML)5000 / 18.94
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)12 / 10.90
Minimum weight of rail (calculated) (lb/yd / kg/m)62 / 31
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)56 / 1422
Boiler Pressure (psi / kPa)200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)19" x 26" / 483x660
Tractive Effort (lbs / kg)28,493 / 12924.22
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.91
Heating Ability
Firebox Area (sq ft / m2)175.50 / 16.31
Grate Area (sq ft / m2)24.70 / 2.30
Evaporative Heating Surface (sq ft / m2)2340 / 217.47
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2340 / 217.47
Evaporative Heating Surface/Cylinder Volume274.26
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4940
Same as above plus superheater percentage4940
Same as above but substitute firebox area for grate area35,100
Power L17039
Power MT417.53

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