3204-3209 arrived in 1902, 3210-3219 -- J-1a -- arrived in 1907, and 3220-3239 -- J-1b -- were delivered in 1908-1909.
Retired from 1926 through 1947.
Data from Boston & Maine 1947 diagrams and 1919 Locomotive Classification, supplied by Allen Stanley in May 2005 from his extensive collection.
| Specifications | |
|---|---|
| Class | J-1 |
| Locobase ID | 2381 |
| Railroad | Boston & Maine |
| Whyte | 4-4-2 |
| Road Numbers | 3204-3244 |
| Gauge | Std |
| Builder | Alco |
| Year | 1908 |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase | 7' |
| Engine Wheelbase | 26.33' |
| Ratio of driving wheelbase to overall engine wheebase | 0.27 |
| Overall Wheelbase (engine & tender) | 54.08' |
| Axle Loading (Maximum Weight per Axle) | 45400 lbs |
| Weight on Drivers | 90600 lbs |
| Engine Weight | 178600 lbs |
| Tender Light Weight | 57500 lbs |
| Total Engine and Tender Weight | 236100 lbs |
| Tender Water Capacity | 5000 gals |
| Tender Fuel Capacity (oil/coal) | 12 tons |
| Minimum weight per yard of rail on which locomotive could run | 76 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 79" |
| Boiler Pressure | 200 psi |
| Cylinders (dia x stroke) | 19" x 28" |
| Tractive Effort | 21751 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.17 |
| Heating Ability | |
| Firebox Area | |
| Grate Area | 41.75 sq. ft |
| Evaporative Heating Surface | 2895 |
| Superheating Surface | |
| Combined Heating Surface | 2895 |
| Evaporative Heating Surface/Cylinder Volume | 315.07 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 8350 |
| Same as above plus superheater percentage | 8350 |
| Same as above but substitute firebox area for grate area | 0 |
| Power L1 | 0 |
| Power MT | 0 |
| This page last modified: . | [Contact] | All material © 1999-2008 SteamLocomotive.com |