Pacific & Idaho Northern 2-8-2 "Mikado" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 200 (Locobase 13908)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 41, p. 118. Works number was 38035 in July 1912.

For the 200, its stint on the P & IN logging road was just the start of a long career. It was sold to the Newaukum Valley on Onalaska, Wash sometime before 1922.

When the NVRR was done with it, the railroad sold the 200 to the Carlisle Lumber There it partnered with the 901, a very similar engine with a longer stroke that began on the Marysville & Northern and is described in Locobase 13681.Company as their 900. Carlisle ran the 900 for well over a decade, then sold it in 1943 to the Red River Lumber Company, which renumbered it 104

RRLC soon sold all of its assets, including the 104, to the Fruit Growers Supply Company.

The engine was scrapped in November 1956.

Specifications by Steve Llanso of Sweat House Media
Class200
Locobase ID13,908
RailroadPacific & Idaho Northern
CountryUSA
Whyte2-8-2
Number in Class1
Road Numbers200
GaugeStd
Number Built1
BuilderBaldwin
Year1912
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.08 / 3.99
Engine Wheelbase (ft / m)27 / 8.23
Ratio of driving wheelbase to overall engine wheebase 0.48
Overall Wheelbase (engine & tender) (ft / m)55.50 / 16.92
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)132,900 / 60,282
Engine Weight (lbs / kg)171,700 / 77,882
Tender Loaded Weight (lbs / kg)100,000 / 45,359
Total Engine and Tender Weight (lbs / kg)271,700 / 123,241
Tender Water Capacity (gals / ML)5000 / 18.94
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)9 / 8.20
Minimum weight of rail (calculated) (lb/yd / kg/m)55 / 27.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)20" x 26" / 508x660
Tractive Effort (lbs / kg)33,150 / 15036.60
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.01
Heating Ability
Firebox Area (sq ft / m2)158 / 14.68
Grate Area (sq ft / m2)41.30 / 3.84
Evaporative Heating Surface (sq ft / m2)3166 / 294.13
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)3166 / 294.13
Evaporative Heating Surface/Cylinder Volume334.89
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation7434
Same as above plus superheater percentage7434
Same as above but substitute firebox area for grate area28,440
Power L16026
Power MT399.85