Data from MP SUBS 7 - 1935 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. For BL&AS information, see "Tap Line Case" Summary of Blytheville, Leachville & Arkansas Southern Railroad", found in the Texas Transportation Archive at [], last accessed 10 September 2019. Works number was 53631 in May 1913.
This one-off Ten-wheel mixed-traffic engine originally went to work for the builder of the Wichita & Midland Valley Railroad. This railroad and construction company were formed by the Midland Valley Railroad, which had just finished the first part of the line from Ft Smith, Arkansas to Arkansas City. The W&MV ran from Ark City to Wichita, Kan .
After it was completed, the construction company sold 102 to the Blytheville, Leachville & Arkansas Southern as their 10. The BR&AS sold the 10 to locomotive rebuilder/reseller Birmingham Rail & Locomotive, who found a buyer in the San Antonio, Uvalde & Gulf on 30 December 1924.
The 33 was renumbered 297 when the SAU&G rolled into the Missouri Pacific. Given its own class ID, the 297 remained in service for years, only being scrapped in July 1948.
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 [], 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 Middle Run Media | ||
---|---|---|
Class | 102/33/TN-63 - 297 | 108 |
Locobase ID | 7755 | 12806 |
Railroad | Midland Construction | Mississippi Central |
Country | USA | USA |
Whyte | 4-6-0 | 4-6-0 |
Number in Class | 1 | 7 |
Road Numbers | 102/33/297 | 108-110, 112-115 |
Gauge | Std | Std |
Number Built | 1 | 7 |
Builder | Alco-Schenectady | Burnham, Williams & Co |
Year | 1913 | 1905 |
Valve Gear | Walschaert | Stephenson |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 14 / 4.27 | 14.25 / 4.34 |
Engine Wheelbase (ft / m) | 24.58 / 7.49 | 24.25 / 7.39 |
Ratio of driving wheelbase to overall engine wheelbase | 0.57 | 0.59 |
Overall Wheelbase (engine & tender) (ft / m) | 54.45 / 16.60 | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 42,552 / 19,301 | |
Weight on Drivers (lbs / kg) | 116,000 / 52,617 | 111,500 / 50,576 |
Engine Weight (lbs / kg) | 162,000 / 73,482 | 140,000 / 63,503 |
Tender Loaded Weight (lbs / kg) | 109,700 / 49,759 | 100,000 / 45,359 |
Total Engine and Tender Weight (lbs / kg) | 271,700 / 123,241 | 240,000 / 108,862 |
Tender Water Capacity (gals / ML) | 6000 / 22.73 | 5000 / 18.94 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2721 / 10,299 | 12 / 11 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 64 / 32 | 62 / 31 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 63 / 1600 | 56 / 1422 |
Boiler Pressure (psi / kPa) | 200 / 1380 | 200 / 1380 |
High Pressure Cylinders (dia x stroke) (in / mm) | 19.5" x 26" / 495x660 | 19" x 26" / 483x660 |
Tractive Effort (lbs / kg) | 26,678 / 12100.95 | 28,493 / 12924.22 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.35 | 3.91 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 270 - 2" / 51 | 320 - 2" / 51 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 14 / 4.27 | 13 / 3.96 |
Firebox Area (sq ft / m2) | 160 / 14.86 | 175.50 / 16.31 |
Grate Area (sq ft / m2) | 29 / 2.70 | 24.70 / 2.30 |
Evaporative Heating Surface (sq ft / m2) | 2127 / 197.68 | 2340 / 217.47 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 2127 / 197.68 | 2340 / 217.47 |
Evaporative Heating Surface/Cylinder Volume | 236.60 | 274.33 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 5800 | 4940 |
Same as above plus superheater percentage | 5800 | 4940 |
Same as above but substitute firebox area for grate area | 32,000 | 35,100 |
Power L1 | 6837 | 7041 |
Power MT | 389.82 | 417.65 |