Data from Baldwin Locomotive Works Specification for Engines, 1888, as digitized by the DeGolyer Library of Southern Methodist University Vol 13, p. 201. Works numbers were 8419-8420 in March 1887; 8525, 8527 in April; 8842, 8848-8849, 8851 in October; and 11640 in February 1891; 12306, 12311, 12314, 12316 in October.
This class's design was identical to that of the Consolidations that went to Huntington & Broad Top Mountain in 1886 (see Locobase 11868). The February 1891 engine was later sold to the James Bay Railway in Quebec.
All of the others were retired in 1912-1913.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 18, p. 201. Works numbers were 12785-12788 in June 1892.
Locobase 11867 describes the simple-expansion predecessors that made up most of this class. About eight months after the last of the I class Consolidations was produced, Baldwin supplied this quartet of Vauclain compounds.
They were later converted to 20" x 24" simple-expansion locomotives before being scrapped in 1916-1917.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | I | I2 |
| Locobase ID | 11867 | 12032 |
| Railroad | Buffalo, Rochester & Pittsburgh | Buffalo, Rochester & Pittsburgh |
| Country | USA | USA |
| Whyte | 2-8-0 | 2-8-0 |
| Number in Class | 8 | 4 |
| Road Numbers | 45-48, 69-72, 99, 18, 22, 28, 35 | 49-52 |
| Gauge | Std | Std |
| Number Built | 8 | 4 |
| Builder | Burnham, Parry, Williams & Co | Burnham, Williams & Co |
| Year | 1887 | 1892 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 14 / 4.27 | 14 / 4.27 |
| Engine Wheelbase (ft / m) | 21.50 / 6.55 | 21.58 / 6.58 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.65 | 0.65 |
| Overall Wheelbase (engine & tender) (ft / m) | ||
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 100,000 / 45,359 | 104,000 / 47,174 |
| Engine Weight (lbs / kg) | 116,000 / 52,617 | 117,000 / 53,070 |
| Tender Loaded Weight (lbs / kg) | ||
| Total Engine and Tender Weight (lbs / kg) | ||
| Tender Water Capacity (gals / ML) | 3000 / 11.36 | 3600 / 13.64 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 42 / 21 | 43 / 21.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 50 / 1270 | 51 / 1295 |
| Boiler Pressure (psi / kPa) | 130 / 900 | 175 / 1210 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 24" / 508x610 | 13" x 24" / 330x610 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 22" x 24" / 559x610 | |
| Tractive Effort (lbs / kg) | 21,216 / 9623.43 | 17,537 / 7954.66 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.71 | 5.93 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 196 - 2.25" / 57 | 195 - 2.25" / 57 |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 13.08 / 3.99 | 13.08 / 3.99 |
| Firebox Area (sq ft / m2) | 146 / 13.57 | 146 / 13.57 |
| Grate Area (sq ft / m2) | 30.70 / 2.85 | 30.70 / 2.85 |
| Evaporative Heating Surface (sq ft / m2) | 1657 / 154 | 1657 / 154 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 1657 / 154 | 1657 / 154 |
| Evaporative Heating Surface/Cylinder Volume | 189.81 | 448.96 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 3991 | 5373 |
| Same as above plus superheater percentage | 3991 | 5373 |
| Same as above but substitute firebox area for grate area | 18,980 | 25,550 |
| Power L1 | 2962 | 3363 |
| Power MT | 261.20 | 285.16 |