Central of Georgia 2-6-6-2 "Mallet Mogul" Locomotives in the USA
Class Details by Steve Llanso of Sweat House Media
Class ML (Locobase 7111)
Data from the CofGA 11 - 1925 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works numbers were 59038-59047 in March 1919.
These light Mallets served as pushers on the Sylacauga grade in Alabama, but proved to be overpowered for the Central. They were traded to the Illinois Central in 1926 for some Santa Fes. That railroad, which had gained control of the Cof Ga in 1907, operated them as 6000-6009 for about 10 years before scrapping them.
See the Georgia Encyclopedia online -- [
] (accessed 14 November 2005) -- for more information about the Central of Georgia.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | ML |
| Locobase ID | 7111 |
| Railroad | Central of Georgia (CofGa) |
| Country | USA |
| Whyte | 2-6-6-2 |
| Number in Class | 10 |
| Road Numbers | 1901-1910/6000-6009 |
| Gauge | Std |
| Number Built | 10 |
| Builder | Alco-Richmond |
| Year | 1919 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 20.67 / 6.30 |
| Engine Wheelbase (ft / m) | 31.17 / 9.50 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.66 |
| Overall Wheelbase (engine & tender) (ft / m) | 84.46 / 25.74 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 370,000 / 167,829 |
| Engine Weight (lbs / kg) | 438,000 / 198,674 |
| Tender Loaded Weight (lbs / kg) | 182,500 / 82,781 |
| Total Engine and Tender Weight (lbs / kg) | 620,500 / 281,455 |
| Tender Water Capacity (gals / ML) | 9000 / 34.09 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 17 / 16 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 103 / 51.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 57 / 1448 |
| Boiler Pressure (psi / kPa) | 210 / 1450 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 24" x 32" / 610x813 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 38" x 32" / 965x813 |
| Tractive Effort (lbs / kg) | 82,524 / 37432.30 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.48 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 229 - 2.25" / 57 |
| Flues (number - dia) (in / mm) | 42 - 5.5" / 140 |
| Flue/Tube length (ft / m) | 24 / 7.32 |
| Firebox Area (sq ft / m2) | 397 / 36.88 |
| Grate Area (sq ft / m2) | 76.20 / 7.08 |
| Evaporative Heating Surface (sq ft / m2) | 5069 / 471.10 |
| Superheating Surface (sq ft / m2) | 1180 / 109.67 |
| Combined Heating Surface (sq ft / m2) | 6249 / 580.77 |
| Evaporative Heating Surface/Cylinder Volume | 302.52 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 16,002 |
| Same as above plus superheater percentage | 19,042 |
| Same as above but substitute firebox area for grate area | 99,210 |
| Power L1 | 8394 |
| Power MT | 300.09 |