Abilene & Southern 2-6-0 "Mogul" Locomotives in the USA

Ringaboy: Retro Railware

Modern fabrics meet classic heritage looks. Unique & comfortable retro rail logo shirts & tops for ladies & men. Featuring crew, flowy, hoodies, long sleeve, scoop, slouchy, tank, thermal & V-neck styles. Custom & bulk inquiries welcome.

Class Details by Steve Llanso of Sweat House Media

Class 12 (Locobase 8501)

Data from T&P 1953ca Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

Locobase is intrigued by the calculations that must have underlay a 1920s decision concerning this locomotive. In Locobase 7359, we describe A & S's 12 4-4-0, a Pittsburgh LW product from 1881. We note that a later roster shows the engine to have been retired in 1919.

Retired, perhaps, but not scrapped, obviously, because seven years later the engine was taken in hand by Baldwin and rebuilt as a 2-6-0. (Says so right in the diagram ...)

The math intrigues - the railroad takes a 45-year-old locomotive and puts much smaller drivers under a boiler that had to have been reworked. The cylinder volume remains the same and the heating surfaces are approximately equal, but what of this engine could have had an 1881 date stamp?

Whatever the reason (maybe the railroad could get money for repairs, but not new acquistions, e.g.), the revived #12 carried on another 8 years and was scrapped, for sure, in 1934.


Class E (Locobase 7361)

Data from AB&SOU 6 -1919 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works number was 10176.

The A&S had this Mogul as the most powerful locomotive of the four to six that remained in service in the 1910s. Locobase correctly divined that this engine was purchased used in January by the A&S from the Missouri-Kansas-Texas Railway's D4 class of Moguls.

By 1919, only four engines were still active.

Specifications by Steve Llanso of Sweat House Media
Class12E
Locobase ID8501 7361
RailroadAbilene & SouthernAbilene & Southern
CountryUSAUSA
Whyte2-6-02-6-0
Number in Class11
Road Numbers1217
GaugeStdStd
Number Built
BuilderA&SBurnham, Williams & Co
Year19261890
Valve GearWalschaertStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.50 / 3.5113.50 / 4.11
Engine Wheelbase (ft / m)19.83 / 6.0420.12 / 6.13
Ratio of driving wheelbase to overall engine wheebase 0.58 0.67
Overall Wheelbase (engine & tender) (ft / m)48.72 / 14.8546.36 / 14.13
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)96,000 / 43,54591,000 / 41,277
Engine Weight (lbs / kg)111,000 / 50,349104,800 / 47,537
Tender Loaded Weight (lbs / kg)108,000 / 48,98884,200 / 38,193
Total Engine and Tender Weight (lbs / kg)219,000 / 99,337189,000 / 85,730
Tender Water Capacity (gals / ML)5500 / 20.833500 / 13.26
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)2100 / 88 / 7.30
Minimum weight of rail (calculated) (lb/yd / kg/m)53 / 26.5051 / 25.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 127057 / 1448
Boiler Pressure (psi / kPa)170 / 11.70147 / 10.10
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x61019" x 24" / 483x610
Tractive Effort (lbs / kg)22,473 / 10193.5918,992 / 8614.64
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.27 4.79
Heating Ability
Firebox Area (sq ft / m2)126 / 11.71135 / 12.55
Grate Area (sq ft / m2)19.10 / 1.7822.90 / 2.13
Evaporative Heating Surface (sq ft / m2)1287 / 119.611551 / 144.14
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1287 / 119.611551 / 144.14
Evaporative Heating Surface/Cylinder Volume182.07196.93
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation32473366
Same as above plus superheater percentage32473366
Same as above but substitute firebox area for grate area21,42019,845
Power L138423947
Power MT264.69286.87