Builder information from B Rumary list supplied by Allen Stanley in March 2004. Works numbers were 1615-1620 (June-July 1896). LS & I 1, 2, & 4 went to the Marquette & Southeastern in 1905 as their 35,33, & 34, respectively. The other 3 were renumbered twice by the LS & I before being sold for scrap in 1934.
This class came from Baldwin as a batch (works #43105-43107). It was of middling weight for the time, but had large piston valves (14" diameter) and a very large boiler. The firebox heating surface included 29 sq ft of arch tubes.
After a long career with the LS & I, the railroad sold all three to the Marquette & Huron Mountain tourist railroad that operated on the recently abandoned Big Bay branch line. 34-35 went in July 1963, 32 in December 1963.
34 ultimately wound up on the Western Maryland Scenic Railroad as its 734 and 35 was adopted by the Illinois Railway Museum.
| Specifications | ||
|---|---|---|
| Class | 1 | 18 / SC-1 |
| Locobase ID | 3198 | 3295 |
| Railroad | Lake Superior & Ishpeming | Lake Superior & Ishpeming |
| Whyte | 2-8-0 | 2-8-0 |
| Road Numbers | 1-6 | 18-20 / 30-32 / 34-35 |
| Gauge | Std | Std |
| Builder | Pittsburgh | Baldwin |
| Year | 1896 | 1916 |
| Valve Gear | Stephenson | Walschaert |
| Locomotive Length and Weight | ||
| Driver Wheelbase | 15.50' | 16' |
| Engine Wheelbase | 23.50' | 26' |
| Ratio of driving wheelbase to overall engine wheebase | 0.66 | 0.62 |
| Overall Wheelbase (engine & tender) | 52.85' | 60.96' |
| Axle Loading (Maximum Weight per Axle) | ||
| Weight on Drivers | 132800 lbs | 238000 lbs |
| Engine Weight | 147600 lbs | 268000 lbs |
| Tender Light Weight | 167000 lbs | |
| Total Engine and Tender Weight | 0 | 435000 lbs |
| Tender Water Capacity | 4000 gals | |
| Tender Fuel Capacity (oil/coal) | ||
| Minimum weight per yard of rail on which locomotive could run | 55.33 lb rail | 99.17 lb rail |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter | 56" | 57" |
| Boiler Pressure | 180 psi | 185 psi |
| Cylinders (dia x stroke) | 20" x 28" | 26" x 30" |
| Low Pressure Cylinders (dia x stroke) | 31" x 28" | " x " |
| Tractive Effort | 43213 lbs | 55948 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.07 | 4.25 |
| Heating Ability | ||
| Firebox Area | 148.60 sq. ft | 245 sq. ft |
| Grate Area | 31.78 sq. ft | 58.70 sq. ft |
| Evaporative Heating Surface | 2198 | 3643 |
| Superheating Surface | 844 | |
| Combined Heating Surface | 2198 | 4487 |
| Evaporative Heating Surface/Cylinder Volume | 215.89 | 197.61 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 5720.40 | 10859.50 |
| Same as above plus superheater percentage | 5720.40 | 12902.16 |
| Same as above but substitute firebox area for grate area | 26748 | 53850.59 |
| Power L1 | 2019.98 | 11882.52 |
| Power MT | 134.14 | 440.28 |
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