Data from Angus Sinclair, Development of the Locomotive Engine (New York: Angus Sinclair Publishing, 1907), p.266. (Sinclair attributes the 1853 American Railway Journal article from which he derived the information to Zerah Colburn.) Works numbers were377
378 in June 1850.
Locobase 1022 describes Baldwin's flexible-beam truck. All four axles were powered, butthe front two were carried in a truck that allowed a parallelogram shift in alignment as the locomotive entered or left a curve. Sinclair observes (probably repeating Colburn) that the use of coupling rods on the drivers in this front truck "...would prevent any sensible vibration". Locobase isn't sure from the context whether Sinclair-Colburn thought the flexible-beam was unnecessary.
In any case, the pair served as pushers on 1.3% grades. The design still used a haystack firebox and very large and tall wood-burner's stack.
Gene Connelly's Baldwin list shows two more 0-8-0s following immediately. They had smaller drivers (46") and smaller cylinders (17" x 22"). Their works numbers were 379 in December 1850 and 380 in June 1851.
Boiler pressure is a Locobase estimate.
Data from Angus Sinclair, Development of the Locomotive Engine (New York: Angus Sinclair Publishing, 1907), p.269. (Sinclair attributes the 1853 American Railway Journal article from which he derived the information to Zerah Colburn.)
Impressive cylinder volume for the time and small drivers, which undoubtedly reduced the pair's range.
Boiler pressure is a Locobase estimate.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 57 | 88 |
| Locobase ID | 12540 | 12548 |
| Railroad | Erie (ERR) | Erie (ERR) |
| Country | USA | USA |
| Whyte | 0-8-0 | 0-8-0 |
| Number in Class | 2 | 2 |
| Road Numbers | 57-58 | 88-89 |
| Gauge | 6' | 6' |
| Number Built | 2 | 2 |
| Builder | M W Baldwin | Ross Winans |
| Year | 1850 | 1851 |
| Valve Gear | ||
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | ||
| Engine Wheelbase (ft / m) | ||
| Ratio of driving wheelbase to overall engine wheelbase | ||
| Overall Wheelbase (engine & tender) (ft / m) | ||
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 22,850 / 10,365 | |
| Weight on Drivers (lbs / kg) | 73,700 / 33,430 | 56,000 / 25,401 |
| Engine Weight (lbs / kg) | 73,700 / 33,430 | 56,000 / 25,401 |
| Tender Loaded Weight (lbs / kg) | ||
| Total Engine and Tender Weight (lbs / kg) | ||
| Tender Water Capacity (gals / ML) | ||
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 31 / 15.50 | 23 / 11.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 48 / 1219 | 43 / 1092 |
| Boiler Pressure (psi / kPa) | 100 / 690 | 100 / 690 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.25" x 23" / 464x584 | 19" x 22" / 483x559 |
| Tractive Effort (lbs / kg) | 13,565 / 6152.99 | 15,699 / 7120.96 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.43 | 3.57 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 147 - 2" / 51 | |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 14 / 4.27 | |
| Firebox Area (sq ft / m2) | 67.50 / 6.27 | 85.50 / 7.95 |
| Grate Area (sq ft / m2) | 14 / 1.30 | 20.25 / 1.88 |
| Evaporative Heating Surface (sq ft / m2) | 1145 / 106.41 | 1004 / 93.31 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 1145 / 106.41 | 1004 / 93.31 |
| Evaporative Heating Surface/Cylinder Volume | 164.51 | 139.06 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 1400 | 2025 |
| Same as above plus superheater percentage | 1400 | 2025 |
| Same as above but substitute firebox area for grate area | 6750 | 8550 |
| Power L1 | 1704 | 1421 |
| Power MT | 203.89 | 223.77 |
