Data from "'Forney' Locomotive for the New York elevated Railroad," Scientific American, Volume XXXIX [39], New series, No 21 (23 November 1878), p.319; and John H White, Jr, "Spunky Little Devils"Locomotives of the New York Elevated," Railway and Locomotive Historical Society Bulletin 162, See Locobase 5423 for a more general discussion. Works numbers were 710-714 in August 1878 and 720-724 in September.
Some of the hundreds of Matthias Forney tanks designed for rapid acceleration over short distances. A straight boiler rode over the two driving axles and the firebox dropped behind the rear driving axle and in front of the bogie truck under the tank.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 9, p. 103. See also [], last accessed 7 November 2010 and F J Camulla, "The New York Elevated Railroads," Industries and Iron, Volume 1 (24 December 1886), p. 662-663. Baldwin works numbers were 4539-4542, 4544-4546, 4548 in February 1879; 4550, 4552, 4567-4573 in March. Rhode Island's works numbers were 745-747 in February 1879 and 748-762 in March.
After 25 years of service, the lines were electrified and the Forneys were sold in 1903-1904 to locomotive rebuilder/reseller Birmingham Rail & Locomotive. BR&L found new homes for the entire class in lumbering, a kind of railroading that suited the low axle loadings and starting traction power of the 0-4-4T arrangement.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | B | D / D2 |
Locobase ID | 5040 | 15371 |
Railroad | New York Elevated | New York Elevated |
Country | USA | USA |
Whyte | 0-4-4T | 0-4-4T |
Number in Class | 17 | |
Road Numbers | 45, 41-44, 61-65 | 97-113 |
Gauge | Std | Std |
Number Built | 17 | |
Builder | Rhode Island | several |
Year | 1878 | 1879 |
Valve Gear | Stephenson | Stephenson |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 5.50 / 1.68 | 5 / 1.52 |
Engine Wheelbase (ft / m) | 16 / 4.88 | 16.08 / 4.90 |
Ratio of driving wheelbase to overall engine wheelbase | 0.34 | 0.31 |
Overall Wheelbase (engine & tender) (ft / m) | 16.08 / 4.90 | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | 19,170 / 8695 | 21,000 / 9525 |
Engine Weight (lbs / kg) | 29,890 / 13,558 | 31,500 / 14,288 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | ||
Tender Water Capacity (gals / ML) | 500 / 1.89 | 450 / 1.70 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 16 / 8 | 18 / 9 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 38 / 965 | 42 / 1067 |
Boiler Pressure (psi / kPa) | 130 / 900 | 130 / 900 |
High Pressure Cylinders (dia x stroke) (in / mm) | 10" x 14" / 254x356 | 10" x 16" / 254x406 |
Tractive Effort (lbs / kg) | 4071 / 1846.58 | 4210 / 1909.63 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.71 | 4.99 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 105 - 1.5" / 38 | 128 - 1.5" / 38 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 5.83 / 1.78 | 6.83 / 2.08 |
Firebox Area (sq ft / m2) | 57 / 5.30 | 47.50 / 4.41 |
Grate Area (sq ft / m2) | 10 / 0.93 | 10.30 / 0.96 |
Evaporative Heating Surface (sq ft / m2) | 297 / 27.59 | 387 / 35.95 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 297 / 27.59 | 387 / 35.95 |
Evaporative Heating Surface/Cylinder Volume | 233.86 | 266.90 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 1300 | 1339 |
Same as above plus superheater percentage | 1300 | 1339 |
Same as above but substitute firebox area for grate area | 7410 | 6175 |
Power L1 | 3773 | 3919 |
Power MT | 867.82 | 822.85 |