Hecla & Torch Lake 2-8-2 "Mikado" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class Penokee (Locobase 10781)

Data from Baldwin Locomotive Works, Record of Recent Construction ((1903), No. 35, p. 190-191. Works number was 20163 in February 1902.

This copper-mining company was one of the largest to be assembled in Michigan's copper country located in the Upper Peninsula. According to http://www.scripophily.net/calhecin.html, between 1867 and 1884, the C & H M C produced half of the total copper output in the United States. And according to David J Krause, in The Making of a Mining District: Keweenaw Native Copper 1550-1870 (p. 240), the C & H often was seen as synonymous with the Keweenaw peninsula. It was "...run efficiently, mined the richest lode, paid the best wages, and housed its employees adequately and inexpensively."

This Mikado tank was delivered as a 4' 1"-gauge engine, but was converted to standard gauge in 1907. Sometime later the Penokee was operated by the Hecla & Torch Lake, which was owned by the C & HMC. It was scrapped in 1944.


Class Roberval (Locobase 13209)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 31, p.83. Works number was 32200 and 32223 in November 1907.

These two tanks added to the H & TL's Mikado holding; the first is described in Locobase 10781. The second of the pair produced in Novamber 1907 was named Champlain.

Roberval was scrapped in 1944, the Champlain in 1955.

Specifications by Steve Llanso of Sweat House Media
ClassPenokeeRoberval
Locobase ID10,781 13,209
RailroadHecla & Torch LakeHecla & Torch Lake
CountryUSAUSA
Whyte2-8-2T2-8-2T
Number in Class11
Road Numbers158-9
Gauge4' 1""Std
Number Built11
BuilderBurnham, Williams & CoBurnham, Williams & Co
Year19021907
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.33 / 4.0613.75 / 4.19
Engine Wheelbase (ft / m)28.33 / 8.6321.33 / 6.50
Ratio of driving wheelbase to overall engine wheebase 0.47 0.64
Overall Wheelbase (engine & tender) (ft / m)28.33 / 8.6348.21
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)128,660 / 58,359124,000 / 56,246
Engine Weight (lbs / kg)169,560 / 76,911136,000 / 61,689
Tender Loaded Weight (lbs / kg)70,000 / 31,752
Total Engine and Tender Weight (lbs / kg)169,560206,000 / 93,441
Tender Water Capacity (gals / ML)2000 / 7.583500 / 13.26
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)54 / 2752 / 26
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51 / 129551 / 1295
Boiler Pressure (psi / kPa)185 / 12.80180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x61019" x 26" / 483x660
Tractive Effort (lbs / kg)23,976 / 10875.3428,158 / 12772.27
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.37 4.40
Heating Ability
Firebox Area (sq ft / m2)139.50 / 12.96104.50 / 9.71
Grate Area (sq ft / m2)23 / 2.1428 / 2.60
Evaporative Heating Surface (sq ft / m2)1567 / 145.631761 / 163.66
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1567 / 145.631761 / 163.66
Evaporative Heating Surface/Cylinder Volume221.69206.40
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation42555040
Same as above plus superheater percentage42555040
Same as above but substitute firebox area for grate area25,80818,810
Power L150384095
Power MT345.31291.22