Tuskegee 2-6-2 "Prairie" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 101 (Locobase 15312)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 73, pp. 319+. See also Mississippi Rails' entry at http://www.msrailroads.com/Tuskegee.htm . Works number was 58057 in October 1924.

101 was one of few new locomotives bought for the TRR. Its 1924 price was $21,250. The engine was destined for a line that had maximum grades of 2 1/2% and 18 degree (radii of 320 feet/97.6 metres).

After three decades of service on the TRR, the 101 was sold to the T R Miller Mill Company of Brewton, Ala in 1954. It next changed hands when collector Herbert Hansen of Union, IL bought the 101 in July 1969.

As of 2013, the locomotive was held as part of the Illinois Railroad Museum's collection.

Principal Dimensions by Steve Llanso of Sweat House Media
Class101
Locobase ID15,312
RailroadTuskegee
CountryUSA
Whyte2-6-2
Number in Class1
Road Numbers101
GaugeStd
Number Built1
BuilderBaldwin
Year1924
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.25 / 3.12
Engine Wheelbase (ft / m)26.83 / 8.18
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender) (ft / m)48.75 / 14.86
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)92,000 / 41,731
Engine Weight (lbs / kg)120,000 / 54,431
Tender Loaded Weight (lbs / kg)83,000 / 37,648
Total Engine and Tender Weight (lbs / kg)203,000 / 92,079
Tender Water Capacity (gals / ML)4000 / 15.15
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)7 / 6.40
Minimum weight of rail (calculated) (lb/yd / kg/m)51 / 25.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)17" x 24" / 432x610
Tractive Effort (lbs / kg)24,118 / 10939.75
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.81
Heating Ability
Firebox Area (sq ft / m2)101 / 9.38
Grate Area (sq ft / m2)18.70 / 1.74
Evaporative Heating Surface (sq ft / m2)1637 / 152.08
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1637 / 152.08
Evaporative Heating Surface/Cylinder Volume259.64
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3366
Same as above plus superheater percentage3366
Same as above but substitute firebox area for grate area18,180
Power L14484
Power MT322.35