Angelina & Neches River 2-8-2 "Mikado" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 110 (Locobase 15307)

Data from DeGolyer, Volume 73, pp. 208+. Works number was 58040 in September 1924.

Typical logging Mikado for service in southeast Texas, this superheated oil-burner used 10" (254 mm) piston valves to supply the cylinders with steam. Its specs said that, where practicable, "specialties and minor details" were to be the same as the Prairie 108 delivered in 1920 (Locobase 14709).

Based in Keltys, Tex, the 110 operated on the AC's railroad for over 40 years before the closing of the line in 1966 following the sale of the ACLC to Owens-Illinois.

In 1970, O-I's Forest Products Division joined with Lufkin Industries, Inc., Angelina & Neches River Railroad, and the Lufkin Junior Chamber of Commerce in donating the 110 to Lufkin, Texas's Ellen Trout Zoo. Cannibalized to some extent over the next forty years by the Texas State Railroad, the 110 was refurbished in 2010, a project that included the removal of asbestos lagging, sandblasting, a new coat of paint, and new lettering/markings to resemble its original state. Perhaps most important, the zoo erected a metal awning over the locomotive to provide some protection from the sun and from bad weather.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID15307
RailroadAngelina & Neches River
Number in Class1
Road Numbers110
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.50 / 4.11
Engine Wheelbase (ft / m)29 / 8.84
Ratio of driving wheelbase to overall engine wheelbase 0.47
Overall Wheelbase (engine & tender) (ft / m)55.04 / 16.78
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)122,000 / 55,338
Engine Weight (lbs / kg)154,000 / 69,853
Tender Loaded Weight (lbs / kg)115,000 / 52,163
Total Engine and Tender Weight (lbs / kg)269,000 / 122,016
Tender Water Capacity (gals / ML)5500 / 20.83
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)2100 / 7949
Minimum weight of rail (calculated) (lb/yd / kg/m)51 / 25.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)190 / 13.10
High Pressure Cylinders (dia x stroke) (in / mm)19" x 24" / 483x610
Tractive Effort (lbs / kg)29,151 / 13222.69
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.19
Heating Ability
Tubes (number - dia) (in / mm)170 - 2" / 51
Flues (number - dia) (in / mm)26 - 5.375" / 137
Flue/Tube length (ft / m)12 / 3.66
Firebox Area (sq ft / m2)154 / 14.31
Grate Area (sq ft / m2)29 / 2.70
Evaporative Heating Surface (sq ft / m2)1651 / 153.44
Superheating Surface (sq ft / m2)373 / 34.67
Combined Heating Surface (sq ft / m2)2024 / 188.11
Evaporative Heating Surface/Cylinder Volume209.52
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5510
Same as above plus superheater percentage6502
Same as above but substitute firebox area for grate area34,527
Power L111,145
Power MT805.59

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Wes Barris