Oahu Railway & Land Company 2-8-2 "Mikado" Locomotives in the USA

Ringaboy: Retro Railware

Modern fabrics meet classic heritage looks. Unique & comfortable retro rail logo shirts & tops for ladies & men. Featuring crew, flowy, hoodies, long sleeve, scoop, slouchy, tank, thermal & V-neck styles. Custom & bulk inquiries welcome.

Class Details by Steve Llanso of Sweat House Media

Class 60 (Locobase 13857)

Data from Alco Builder's Card depicting order S-1500 and archived at http://hsengco.com/mikes/alcomike.htm (last accessed 12 February 2012). See also Jim Chiddix & MacKinnon Simpson, Next Stop Honolulu (Honolulu: Sugar Cane Press, 2004), Works numbers were 66279-66280 in March 1925 and 66685-66686 in February 1926.

This Hawai'ian engine was a duplicate of the "Sport Model" Mikes built for the Denver & Rio Grande Western two years earlier (Locobase 5042). There were detail differences, of course, but the photos show that they were close sisters. Richard Duley's information hosted on Wes Barris's steamlocomotive.com notes that the OR&L ordered 2 in 1925 and 2 in 1926.

Locobase hasn't seen a road-numbering pattern that goes in jumps of 10 before, but likes the implied ambition.

The 70, 80, and 90 all retired in 1948 and were scrapped a few years later; only the 60 remained operational in 1949. It wasn't scrapped until 1966.

Specifications by Steve Llanso of Sweat House Media
Class60
Locobase ID13,857
RailroadOahu Railway & Land Company
CountryUSA
Whyte2-8-2
Number in Class4
Road Numbers60, 70, 80, 90
Gauge3'
Number Built4
BuilderAlco-Schenectady
Year1925
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.25 / 3.73
Engine Wheelbase (ft / m)28.83 / 8.79
Ratio of driving wheelbase to overall engine wheebase 0.42
Overall Wheelbase (engine & tender) (ft / m)52.98 / 16.15
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)119,000 / 53,978
Engine Weight (lbs / kg)156,000 / 70,760
Tender Loaded Weight (lbs / kg)83,300 / 37,784
Total Engine and Tender Weight (lbs / kg)239,300 / 108,544
Tender Water Capacity (gals / ML)3500 / 13.26
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)1800 / 6.80
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 25
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)18" x 22" / 457x559
Tractive Effort (lbs / kg)27,540 / 12491.95
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.32
Heating Ability
Firebox Area (sq ft / m2)97 / 9.01
Grate Area (sq ft / m2)30.10 / 2.80
Evaporative Heating Surface (sq ft / m2)1594 / 148.09
Superheating Surface (sq ft / m2)409 / 38
Combined Heating Surface (sq ft / m2)2003 / 186.09
Evaporative Heating Surface/Cylinder Volume246.01
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6020
Same as above plus superheater percentage7224
Same as above but substitute firebox area for grate area23,280
Power L113,038
Power MT966.18