The superheater area is estimated because the diagram doesn't show a separate superheater area, but several other Locobase entries with similar flue lengths and flue counts show the area given.
According to Nicholas Muff's outline on http://www.rr-fallenflags.org/L&A, these locomotives were used primarily for yard duty. The 99 was sold in December to the West Feliciana of San Francisville, La. It was later sold to the South Shore, which turned it over to the Illinois Railway Museum in 1968.
98 was sold in February 1947 to the Ashley, Drew & Northern as their 135.
| Specifications | |
|---|---|
| Class | 90 |
| Locobase ID | 6157 |
| Railroad | Louisiana Railway & Navigation |
| Whyte | 2-8-0 |
| Road Numbers | 90-91, 98-99 |
| Gauge | Std |
| Builder | Baldwin |
| Year | 1912 |
| Valve Gear | Stevens |
| Locomotive Length and Weight | |
| Driver Wheelbase | 14.17' |
| Engine Wheelbase | 21.83' |
| Ratio of driving wheelbase to overall engine wheebase | 0.65 |
| Overall Wheelbase (engine & tender) | 60.17' |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 140600 lbs |
| Engine Weight | 156400 lbs |
| Tender Light Weight | 118600 lbs |
| Total Engine and Tender Weight | 275000 lbs |
| Tender Water Capacity | 7000 gals |
| Tender Fuel Capacity (oil/coal) | 2365 gals |
| Minimum weight per yard of rail on which locomotive could run | 59 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 51" |
| Boiler Pressure | 180 psi |
| Cylinders (dia x stroke) | 20" x 26" |
| Tractive Effort | 31200 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.51 |
| Heating Ability | |
| Firebox Area | 168 sq. ft |
| Grate Area | 31.40 sq. ft |
| Evaporative Heating Surface | 1671 |
| Superheating Surface | 340 |
| Combined Heating Surface | 2011 |
| Evaporative Heating Surface/Cylinder Volume | 176.75 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5652 |
| Same as above plus superheater percentage | 6613 |
| Same as above but substitute firebox area for grate area | 35381 |
| Power L1 | 9016 |
| Power MT | 565.49 |
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