South Bound / Florida Central & Peninsular 2-6-0 "Mogul" Type Locomotives

Class M55-E11 (Locobase 9363)

Data from SAL 9 - 1918 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. See Locobase 9351 for a description for the elegant diagrams that held the data for these locomotives.

A trio of Richmond Moguls (work numbers 2158-2160) intended for freight work. The design had a the typical pinched first course swelling into full diameter just ahead of the second driven axle. The extended smokebox looked like an afterthought.

Class M55-E12 (Locobase 9364)

Data from SAL 9 - 1918 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. See Locobase 9351 for a description for the elegant diagrams that held the data for these locomotives.

Three years after the FC & P took delivery of a trio of Virginia-made Moguls, they went back to the builder for two more (work numbers 2333-2334). Compared to the earlier locomotives, this duo had smaller boilers and fireboxes, but a little more weight on the drivers.

Class M55-I11 (Locobase 9371)

Data from SAL 9 - 1918 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. See Locobase 9351 for a description for the elegant diagrams that held the data for these locomotives.

This pair of Moguls (works #12232-12233) went to the SB RR in the year it completed its main line from Columbia, SC to Savannah, Ga. When the Florida Central & Peninsular leased the railroad in 1893, it renumbered the pair as 216-217. The SAL later renumbered them 371-372. In July 1917, 371 was sold to Georgia Car & Locomotive for switching duties.

Specifications
ClassM55-E11M55-E12M55-I11
Locobase ID936393649371
RailroadFlorida Central & Peninsular (SAL)Florida Central & Peninsular (SAL)South Bound (SAL)
Whyte2-6-02-6-02-6-0
Road Numbers204-206 / 356-358218-219 / 373-3747-8 / 216-217 / 371-372
GaugeStdStdStd
BuilderRichmondRichmondBurnham, Williams & Co
Year189118941891
Valve GearStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase15.33'15.33'15.17'
Engine Wheelbase23.17'23.21'29.62'
Ratio of driving wheelbase to overall engine wheebase 0.66 0.66 0.51
Overall Wheelbase (engine & tender)47.33'50.46'47.25'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers88000 lbs90000 lbs85000 lbs
Engine Weight105000 lbs103000 lbs102000 lbs
Tender Light Weight61600 lbs63000 lbs65800 lbs
Total Engine and Tender Weight166600 lbs166000 lbs167800 lbs
Tender Water Capacity3200 gals3200 gals3200 gals
Tender Fuel Capacity (oil/coal)
Minimum weight per yard of rail on which locomotive could run48.89 lb rail50 lb rail47.22 lb rail
Geometry Relating to Tractive Effort
Driver Diameter51"51"55"
Boiler Pressure140 psi150 psi150 psi
Cylinders (dia x stroke)18" x 24"18" x 24"19" x 24"
Tractive Effort18144 lbs19440 lbs20085 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.85 4.63 4.23
Heating Ability
Firebox Area130.47 sq. ft113.77 sq. ft104.83 sq. ft
Grate Area20.17 sq. ft20.60 sq. ft19.12 sq. ft
Evaporative Heating Surface137714441539
Superheating Surface
Combined Heating Surface137714441539
Evaporative Heating Surface/Cylinder Volume194.81204.28195.41
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2823.8030902868
Same as above plus superheater percentage2823.8030902868
Same as above but substitute firebox area for grate area18265.8017065.5015724.50
Power L13416.423630.693601.96
Power MT256.77266.81280.27

Credits

Introduction and specifications provided by Steve Llanso of Sweat House Media.