Data from "Recent Baldwin Locomotives," Railway Age, Vol 41 (8 June 1906), pp.930-931 and Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volumes 29, p. 52 and 30, p. 226. Works numbers were 27900 in April 1906 and 30905 in May 1907.
The RA report described the stiff requirements demanded by the LC & M. (See Locobase 11765 for a brief description of this upstate New York railroad.): 250 tons up a 4% grade and around 14-degree curves - without rack adhesion! Frictional resistance was to be no more than 15 lb per ton.
An unusual suspension feature was the use of coiled springs to transfer the weight borne by the equalizing beam working the rear driven axle and the rear truck to the engine frame. Another odd arrangement was the placing of the crosshead on the same plane as the center line of the steam chest, thus moving the combination lever inside the crosshead guides. Note that at this time, the engines still used balanced slide valves rather than piston valves.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | 16 |
Locobase ID | 11766 |
Railroad | Lake Champlain & Moriah |
Country | USA |
Whyte | 2-8-2 |
Number in Class | 2 |
Road Numbers | 16-17 |
Gauge | Std |
Number Built | 2 |
Builder | Burnham, Williams & Co |
Year | 1906 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 14.50 / 4.42 |
Engine Wheelbase (ft / m) | 29 / 8.84 |
Ratio of driving wheelbase to overall engine wheelbase | 0.50 |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 170,230 / 77,215 |
Engine Weight (lbs / kg) | 204,730 / 92,864 |
Tender Loaded Weight (lbs / kg) | 110,270 / 50,018 |
Total Engine and Tender Weight (lbs / kg) | 315,000 / 142,882 |
Tender Water Capacity (gals / ML) | 5500 / 20.83 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 71 / 35.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 50 / 1270 |
Boiler Pressure (psi / kPa) | 200 / 1380 |
High Pressure Cylinders (dia x stroke) (in / mm) | 22" x 28" / 559x711 |
Tractive Effort (lbs / kg) | 46,077 / 20900.20 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.69 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 406 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 14.75 / 4.50 |
Firebox Area (sq ft / m2) | 182.30 / 16.94 |
Grate Area (sq ft / m2) | 57 / 5.30 |
Evaporative Heating Surface (sq ft / m2) | 3300 / 306.69 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 3300 / 306.69 |
Evaporative Heating Surface/Cylinder Volume | 267.86 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 11,400 |
Same as above plus superheater percentage | 11,400 |
Same as above but substitute firebox area for grate area | 36,460 |
Power L1 | 5697 |
Power MT | 295.12 |