Data from the 1902 Manhattan Railway Company locomotive diagram book and the JF Webber list of New York Locomotive Works engines supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.
See Locobase 5423 for a more general discussion. The boiler pressure is an estimate as the diagrams do not give the figure. These may be the class that was rebuilt by Rome from earlier Baldwin engines. The first was delivered in May, the last in August.
After the Manhattan was electrified, this class was dispersed all over the world.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | J2 |
| Locobase ID | 6663 |
| Railroad | Manhattan Railway Company |
| Country | USA |
| Whyte | 0-4-2T |
| Number in Class | 25 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 25 |
| Builder | New York |
| Year | 1886 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5 / 1.52 |
| 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) | |
| Weight on Drivers (lbs / kg) | 35,050 / 15,898 |
| Engine Weight (lbs / kg) | 43,450 / 19,709 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 43,450 |
| Tender Water Capacity (gals / ML) | 635 / 2.41 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.50 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 29 / 14.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 42 / 1067 |
| Boiler Pressure (psi / kPa) | 150 / 1030 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 |
| Tractive Effort (lbs / kg) | 5877 / 2665.77 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.96 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 172 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6.54 / 1.99 |
| Firebox Area (sq ft / m2) | 49.20 / 4.57 |
| Grate Area (sq ft / m2) | 11.15 / 1.04 |
| Evaporative Heating Surface (sq ft / m2) | 453 / 42.10 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 453 / 42.10 |
| Evaporative Heating Surface/Cylinder Volume | 257.39 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1673 |
| Same as above plus superheater percentage | 1673 |
| Same as above but substitute firebox area for grate area | 7380 |
| Power L1 | 4170 |
| Power MT | 524.58 |