The reference for locomotives and railcars
Western Maryland No. 6 (Shay C-150-3)
United States | 1945 | only one produced
In May 1950 in Knobmount, West Virginia
In May 1950 in Knobmount, West Virginia
collection Taylor Rush

The heaviest Shays belonged to class C and had three two-axle bogies with a service weight of 160 short tons. Likewise, the class D with four bogies up to 150 short tons was offered, which could score with slightly lower power figures with larger reserves and a higher adhesive weight. A common model with three bogies in the 150 ton weight class is presented here. In terms of the number of cylinders, it did not differ from the smallest B-class models, but the cylinders were significantly larger with a diameter of 17 inches and a piston stroke of 18 inches.

No. 6 in front of a freight train
No. 6 in front of a freight train

The Western Maryland Railway already had one C-70-3 and one D-150-4 type and procured another C-150-3 in 1945. The special thing about this locomotive is that it was the last of about 2,770 Shays built. After the Western Maryland introduced diesel locomotives on main lines beginning in 1949, the number 6 was retired in September 1950 after only five years of service. In 1953 it came to the Baltimore & Ohio Transportation Museum and from there it has been on loan to the state of West Virginia since 1980 for use on the Cass Scenic Railroad. It is considered the largest operational Shay today.

Axle config0-4-4-4-0T (Shay) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Empty weight269,960 lbs
Service weight308,000 lbs
Water capacity6,000 us gal
Fuel capacity18,000 lbs (coal)
Power sourcesteam
Top speed23 mph
Starting effort59,742 lbf
Power Plant
Driver diameter48 in
Boiler pressure200 psi
Expansion typesimple
Cylindersthree, 17 x 18 in
Calculated Values
steam locomotive
geared steam locomotive
last changed: 04/2022

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