2-8-2 "Mikado" Steam Locomotives in the USA

Caddo & Choctaw

In 1915, the Baldwin Locomotive Works delivered a "Mikado" type locomotive to the Caddo & Choctaw Railroad in Arkansas, and the railroad numbered it #4 and named it "R. L. Rowan". In the early 1920s this locomotive was sold to the Choctaw River Lumber Company, which ran it as #4. The locomotive was sold again in 1924 to the United Mining and Smelting Company in Mexico, which gave it number 2069 and later in 1924, it was sold the Mc Cloud River Railroad.

The Mc Cloud River Railroad already had one 2-8-2, which it bought new from Baldwin in 1914 and had assigned it number 18. The newly acquired locomotive was a close twin to number 18 and it was given road number 19.

The nearly identical sisters served on the McCloud River Railroad in a roster of similar sized 2-8-2 and 2-6-2 locomotives until bumped from service by new Baldwin diesels. In 1953, surplus after twenty-nine years of service, the #19 was sold to the Yreka Western and is being used today for steam train excursions.


Roster

Qty.Road NumbersFrom Other RRYear AcquiredYear BuiltBuilderNotes
119McCloud River19531915BaldwinEx McCloud River Railroad #19. Operational and used for excursions.

Class Details by Steve Llanso of Sweat House Media

Class 10 (Locobase 14697)

Data from DeGolyer, Volume 71, pp. 213+. Works number was 55565 in July 1922.

The first R L Rowan was a superheated Mikado delivered to the C&C in 1919. As Locobase notes in entry 14312, the Rowan (#4) was sold to the Mexican Railway soon after delivery. Perhaps the C&C concluded that they didn't really need superheat because when they replaced the 4 with this 2-8-2, they bought a saturated boiler and less power. They did, however, retain piston valves (10"/254 mm) to admit steam to the cylinders.

Caddo River Lumber later sold the 10 to the Warren & Saline River, which owned the 19.9 miles (32 km) of 45, 55, and 60 lb/yard (22.5, 27.5, and 30 kg/metre) rail between Warren and Hermitage, Ark. (The W&SR had another 16.4 miles/26.4 km of trackage rights.)


Class 3 (Locobase 14312)

Data from DeGolyer, Volume 52, pp. 375+. See also Kenneth L Smith, Sawmill: The Story of Cutting the Last Great Virgin Forest East of the Rockies (University of Arkansas Press, 1986), esp. pp 53-58. Works number was 41709 in 1914 and 42000 in April 1915..

This Mikado's superheated boiler supplied steam to the cylinders through 12" (305 mm) piston valves.

The 4 remained on the C&C for only a short time before being sold in 1918 to the Mexican Railway as their 105 and sent south of the border.Some time later, the Mex sold the 105 to United Mining & Smelting as their 2069. UM&S sold the 2069 in February 1923 to the McCloud River, which renumbered it 19. See Locobase 13047.

Principal Dimensions by Steve Llanso of Middle Run Media
Class103
Locobase ID14697 14312
RailroadCaddo & ChoctawCaddo & Choctaw
CountryUSAUSA
Whyte2-8-22-8-2
Number in Class22
Road Numbers103-4
GaugeStdStd
Number Built12
BuilderBaldwinBaldwin
Year19221914
Valve GearWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.50 / 4.1113.08 / 3.99
Engine Wheelbase (ft / m)29 / 8.8427.08 / 8.25
Ratio of driving wheelbase to overall engine wheelbase 0.47 0.48
Overall Wheelbase (engine & tender) (ft / m)52.83 / 16.1057.21 / 16.88
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)120,000 / 54,431141,500 / 62,732
Engine Weight (lbs / kg)155,000 / 70,307179,000 / 80,467
Tender Loaded Weight (lbs / kg)96,000 / 43,545110,000 / 42,003
Total Engine and Tender Weight (lbs / kg)251,000 / 113,852289,000 / 122,470
Tender Water Capacity (gals / ML)4500 / 17.055500 / 17.05
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)8 / 710 / 7
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 2559 / 29.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)46 / 116848 / 1219
Boiler Pressure (psi / kPa)180 / 1240175 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)19" x 24" / 483x61020.5" x 28" / 521x711
Tractive Effort (lbs / kg)28,817 / 13071.1936,465 / 16540.27
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.16 3.88
Heating Ability
Tubes (number - dia) (in / mm)332 - 2" / 51199 - 2" / 51
Flues (number - dia) (in / mm)28 - 5.375" / 137
Flue/Tube length (ft / m)13 / 3.9616.25 / 4.95
Firebox Area (sq ft / m2)155 / 14.40178 / 16.54
Grate Area (sq ft / m2)29 / 2.6941.30 / 3.84
Evaporative Heating Surface (sq ft / m2)2401 / 223.062500 / 232.34
Superheating Surface (sq ft / m2)553 / 51.39
Combined Heating Surface (sq ft / m2)2401 / 223.063053 / 283.73
Evaporative Heating Surface/Cylinder Volume304.70233.64
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation52207228
Same as above plus superheater percentage52208528
Same as above but substitute firebox area for grate area27,90036,757
Power L1556210,947
Power MT408.74682.23

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