Akron & Barberton Belt 2-6-0 "Mogul" Locomotives in the USA

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Class Details by Steve Llanso of Sweat House Media

Class 3 (Locobase 12620)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 25, p. 28. Works number was 21104 on October 1902.

This was a slope-backed tender engine for transfer duties in the Akron area operated by the newly consolidated successor to the Barberton Belt Railroad Co; Cleveland, Barberton & Western Railroad; and the Barberton, Akron & Eastern Belt Line Railway. The main line connected Akron with its southwestern suburb of Barberton and a branch extended north from Barberton to the junction with the Akron, Canton & Youngstown.


Class 4 (Locobase 11598)

Data from George L Fowler, Locomotive Dictionary (Chicago: Railroad Age Gazette, 1909), Figure 35 Volume 28, p. 254 and DeGolyer, Volume 36, p.4. Works numbers were 27440 on February 1906 and 35434 in October 1910.

The Baldwin specs include a maximum curve radius of 32 degrees on 60-lb/yard (30-kg/metre) rail.


Class 6 (Locobase 13693)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 53, p. 234. Works numbers were 39275 on February 1913, 42692 in December 1915, and 42867 in February 1916.

The Baldwin specs include a maximum curve radius of 32 degrees on 60-lb/yard (30-kg/metre) rail. The 1913 Mogul differed from its 1906 predecessor (Locobase 11598) in a few details: the link motion was replaced by outside radial valve gear, the firebox was a bit deeper, and the weight climbed by several tons. Given that this engine, like the others, was used primarily in switching, the extra weight certainly increased the factor of adhesion.

The A & BB bought two more Moguls of the same design.

Specifications by Steve Llanso of Sweat House Media
Class346
Locobase ID12,620 11,598 13,693
RailroadAkron & Barberton BeltAkron & Barberton BeltAkron & Barberton Belt
CountryUSAUSAUSA
Whyte2-6-02-6-02-6-0
Number in Class123
Road Numbers34-56-7, 1
GaugeStdStdStd
Number Built123
BuilderBurnham, Williams & CoBurnham, Williams & CoBaldwin
Year190219061913
Valve GearStephensonStephensonWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)15 / 4.5713 / 3.9613 / 3.96
Engine Wheelbase (ft / m)23.17 / 7.0621.33 / 6.5021.33 / 6.50
Ratio of driving wheelbase to overall engine wheebase 0.65 0.61 0.61
Overall Wheelbase (engine & tender) (ft / m)48.87 / 14.90
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)115,000 / 52,163115,000 / 52,163131,000 / 59,421
Engine Weight (lbs / kg)132,000 / 59,874132,000 / 59,874151,000 / 68,493
Tender Loaded Weight (lbs / kg)70,000 / 31,752100,000 / 45,359120,000 / 54,431
Total Engine and Tender Weight (lbs / kg)202,000 / 91,626232,000 / 105,233271,000 / 122,924
Tender Water Capacity (gals / ML)3500 / 13.265000 / 18.946000 / 22.73
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)10 / 9.10
Minimum weight of rail (calculated) (lb/yd / kg/m)64 / 3264 / 3273 / 36.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)56 / 142250 / 142250 / 1270
Boiler Pressure (psi / kPa)180 / 12.40180 / 12.40180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)20" x 24" / 508x61020" x 24" / 508x61020" x 24" / 508x610
Tractive Effort (lbs / kg)26,229 / 11897.2929,376 / 13324.7529,376 / 13324.75
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.38 3.91 4.46
Heating Ability
Firebox Area (sq ft / m2)152.10 / 14.14157.60 / 14.65161 / 14.96
Grate Area (sq ft / m2)29.10 / 2.7029.70 / 2.7629.20 / 2.71
Evaporative Heating Surface (sq ft / m2)1829 / 169.981837 / 170.721841 / 171.03
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1829 / 169.981837 / 170.721841 / 171.03
Evaporative Heating Surface/Cylinder Volume209.59210.50210.96
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation523853465256
Same as above plus superheater percentage523853465256
Same as above but substitute firebox area for grate area27,37828,36828,980
Power L1498545124548
Power MT286.70259.49229.62