Shevlin-Hixon Company 2-8-2 "Mikado" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 14311)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 52, p. 365+. See also "Shevlin-Hixon Logging Company" at http://www.trainweb.org/highdesertrails/shlco.html and "LoggerHoggers" 08/16/12 06:03 post on Trainorders.com at http://www.trainorders.com/discussion/read.php?10,2846441. Works number was 43210 in April 1916.

This Bend, Ore lumber company operated the oil-burning #2 on 60 lb/yard (30 kg/metre) rail, up 5% grades, and around 25-degree curves. Loggerhogger points out the 1930s upgrade with piston valves and a superheater. (See Locobase 14713 for the #6, which arrived superheated and used many of the same dimensions.) Its "most subtle and well done conversion" added five feet (1.524 metres) to the tender gave it the range it needed to travel the 60 miles (96.6 km) on the Great Northern's section running from Bend to Summit Station and later to Chemult.

When S-H was taken into the Brooks-Scanlon empire, both the 2 and the 4 remained in service " just long enough," says LoggerHogger, "to clean out the operations at the Timber Camp north of Gilchrist, OR so as to comply with the GN trackage agreement."


Class 4 (Locobase 14712)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 62, p. 392+. See also "Shevlin-Hixon Logging Company" at http://www.trainweb.org/highdesertrails/shlco.html and "LoggerHoggers" 08/16/12 06:03 post on Trainorders.com at http://www.trainorders.com/discussion/read.php?10,2846441. Works number was 51907 in June 1919.

Shevlin-Hixon's first logging Mikado from Baldwin arrived in 1916 (Locobase 14311). Three years later the Bend, Ore lumber company returned for a larger version. It had taller drivers, 50% more heating surface and grate area (although a proportionately smaller firebox, which arguably mattered more in an oil-burner). Like the 2, the 4 rolled on 60 lb/yard (30 kg/metre) rail, confronted 5% grades, and bent around 25 degree curves.

LoggerHogger points out that by the 1930s, S-H use of the Great Northern main line extended from Bend through Summit Station all the way to Chemult, 60 miles (96.6 km ) away. He notes that, like the 2, "S-H #4 received the same valve and superheater conversion and she got a tender from one of the 2 McCloud River RR 2-8-2 engines recently received from Alaska at the McCloud. This bigger tender gave #4 the additional range she needed for the longer runs to Chemult."

When S-H was taken into the Brooks-Scanlon empire, both the 2 and the 4 remained in service " just long enough," says LoggerHogger, "to clean out the operations at the Timber Camp north of Gilchrist, OR so as to comply with the GN trackage agreement." They were then scrapped.


Class 5 (Locobase 14713)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 52, p. 365+ and Vol 71, pp. 369. See also "Shevlin-Hixon Logging Company" at http://www.trainweb.org/highdesertrails/shlco.html and "LoggerHoggers" 08/16/12 06:03 post on Trainorders.com at http://www.trainorders.com/discussion/read.php?10,2846441. Works numbers were 55805 in November 1922 and 56111 in January 1923.

Shevlin-Hixon added four logging Mikados to its roster after the 2 arrived in 1916 (Locobase 14311) The first one to be delivered as a superheated engine was 5, which repeated many of the dimensions of the 2. The 6 followed shortly thereafter. Their outside radial gear operated 8" (203 mm) piston valves.

As with all S-H engines, when Brooks-Scanlon took over the S-H stud in 1950 as part of its acquisition of the Bend, Ore company, it scrapped the 6 in short order.


Class 8 (Locobase 14714)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 71, p. 379+. See also "Shevlin-Hixon Logging Company" at http://www.trainweb.org/highdesertrails/shlco.html and "LoggerHoggers" 08/16/12 06:03 post on Trainorders.com at http://www.trainorders.com/discussion/read.php?10,2846441. Works number was 57708 in March 1924.

As with the 5 and 6 (Locobase 14713), the 8 was a superheated version of an earlier S-H logging Mikado. Baldwin's update of the saturated boiler was limited to the removal of 151 small tubes and their replacement by 28 flues. The engine also used outside radial gear to actuate the 12" (305 mm) piston valves.

Specifications by Steve Llanso of Sweat House Media
Class2458
Locobase ID14,311 14,712 14,713 14,714
RailroadShevlin-Hixon CompanyShevlin-Hixon CompanyShevlin-Hixon CompanyShevlin-Hixon Company
CountryUSAUSAUSAUSA
Whyte2-8-22-8-22-8-22-8-2
Number in Class1121
Road Numbers245-68
GaugeStdStdStdStd
Number Built1121
BuilderBaldwinBaldwinBaldwinBaldwin
Year1916191919221924
Valve GearStephensonStephensonWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.08 / 3.6813.08 / 3.9912 / 3.6613.08 / 3.99
Engine Wheelbase (ft / m)27.25 / 8.3127 / 8.2327.58 / 8.4127.08 / 8.25
Ratio of driving wheelbase to overall engine wheebase 0.44 0.48 0.44 0.48
Overall Wheelbase (engine & tender) (ft / m)49.96 / 15.2353.58 / 16.3351.02 / 15.5554.52 / 16.62
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)111,000 / 50,349136,500 / 61,915116,000 / 52,617143,000 / 64,864
Engine Weight (lbs / kg)139,000 / 63,049175,500 / 79,606143,000 / 64,864181,000 / 82,100
Tender Loaded Weight (lbs / kg)70,000 / 31,75280,000 / 36,28790,500 / 41,05080,000 / 36,287
Total Engine and Tender Weight (lbs / kg)209,000 / 94,801255,500 / 115,893233,500 / 105,914261,000 / 118,387
Tender Water Capacity (gals / ML)3500 / 13.264000 / 15.154000 / 15.154000 / 15.15
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)1600 / 6.102000 / 7.602000 / 7.602000 / 7.60
Minimum weight of rail (calculated) (lb/yd)46574860
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 111848 / 121944 / 111848 / 1219
Boiler Pressure (psi / kPa)180 / 12.40170 / 11.70185 / 12.80170 / 11.70
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x61020.5" x 28" / 521x71118" x 24" / 457x61020.5" x 28" / 521x711
Tractive Effort (lbs / kg)27,039 / 12264.7035,424 / 16068.0827,790 / 12605.3535,424 / 16068.08
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.11 3.85 4.17 4.04
Heating Ability
Firebox Area (sq ft / m2)140 / 13.01149 / 13.84141 / 13.10154 / 14.31
Grate Area (sq ft / m2)25.50 / 2.3741.30 / 3.8425.50 / 2.3741.30 / 3.84
Evaporative Heating Surface (sq ft / m2)2108 / 195.843157 / 293.291576 / 146.412476 / 230.03
Superheating Surface (sq ft / m2)328 / 30.47553 / 51.37
Combined Heating Surface (sq ft / m2)2108 / 195.843157 / 293.291904 / 176.883029 / 281.40
Evaporative Heating Surface/Cylinder Volume298.22295.14222.96231.48
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4590702147187021
Same as above plus superheater percentage4590702155198285
Same as above but substitute firebox area for grate area25,20025,33030,51930,892
Power L15244496110,04410,455
Power MT416.61320.50763.56644.74