Steam Pressure	275 PSI
Diameter of Drivers	75 inches (190.5 cm)
Cylinder Diameter	22 inches (55.8cm)
Stroke	30 inches (76.2 cm)
Tractive Effort	42,250 pounds (19204 kg)
Weight	648,500 pounds (293,770 kg)
Length	90 feet 10 inches (27.7m)
Height	15 feet 10 inches (4.7m)
Water Capacity	12,000 gallons (54,600 l)
Oil Capacity	4100 gallons (18614 l)

The Hudson type was a "4-6-4", referring to the wheel arrangement. It had 4 leading wheels, 6 drivers, and 4 trailing wheels. For an explanation of wheel arrangements, view the wheel arrangement chart. Locomotives of the 4-6-4 wheel arrangement were pioneered in North America by the New York Central, and named after it's Hudson River line. This wheel arrangement allowed a larger boiler to be used, which increased the heating surface and consequently, the steam pressure. The 2860's boiler was (and still is) oil fired, using Bunker C fuel oil.