Central RR of New Jersey class B-7
United States 1923 5 produced
The B-7 was a class of five 0-6-0 switchers built by ALCO in 1923. For use in the anthracite mining areas, they had a Wootten firebox with a grate area of 70 square feet. Under the new class scheme of 1945 they were designated 6S46. This represented a switcher with six wheels and a tractive effort of 46,000 pounds.
Number 113 is the only operational steam locomotive of the Central Railroad of New Jersey today. It was used there until 1951 and then by the Reading Anthracite Co. until 1960. It has been refurbished since 1999 and has been used again by the Reading Blue Mountain & Northern Railroad for excursions since 2013.
Technical data
General
- Built
- 1923
- Manufacturers
- ALCO
- Wheel arrangement
- 0-6-0 (Six-coupled)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Service mass
- 89.4 t
- Adhesion mass
- 89.4 t
- Total mass
- 152.5 t
- Axle load
- 29.8 t
Boiler
- Grate area
- 6.503 m²
Power plant
- Driver diameter
- 1,295 mm
- Boiler pressure
- 13.8 bar
- Expansion type
- simple expansion
- Cylinders
- two, 584 x 660 mm
Power
- Power source
- steam
- Estimated power
- 969 kW (1,317 PS)
- Starting effort
- 203.9 kN
Calculated values
- Factor of adhesion
- 1 : 4.30
- Optimal speed
- 29 km/h
- Power-to-weight ratio
- 10.8 kW/t
- Adhesive weight/Total
- 1 : 1.00
