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The reference for locomotives and railcars

Indian Railways class YC

India 1928 38 produced
Variant built by Vulcan Foundry Vulcan Foundry catalog

The YC was an IRS standard design of Pacific passenger locomotives built for metre gauge. Compared to the YB, it also had drivers with a diameter of 57 inches, but was somewhat larger. The cylinders had a diameter of 17.5 inches and a stroke of 24 inches. Between 1928 and 1932, Nasmyth, Wilson & Co., Škoda and Vulcan Foundry built 28 locomotives which made the design less successful than the YB. Two of these went to the Bombay, Baroda and Central India Railway, 13 to the Madras and Southern Mahratta Railway and 13 to Burma Railways.

After World War II, Burma Railways ordered ten more from Vulcan Foundry which brought the total number to 38. With the founding of Indian Railways in 1951, the 15 locomotives from Indian operators came to the Southern Railway zone. In 1975, all were gone. The only two which were preserved are two from the post-war batch for Burma.

Variant built by Nasmyth, Wilson & Co. The Superheater Company Ltd.

Technical data

General

Built
1928-1948
Manufacturers
Nasmyth, Wilson & Co., Škoda, Vulcan Foundry
Wheel arrangement
4-6-2 (Pacific)
Gauge
1,000 mm (Meter gauge)

Dimensions and weights

Length
18.56 m
Wheelbase
8.64 m
Total wheelbase
15.75 m
Service mass
57.7 t
Adhesion mass
36.4 t
Total mass
92.5 t
Rigid wheelbase
3.20 m
Water capacity
13,639 l
Fuel capacity
4.6 t (coal)

Boiler

Grate area
2.88 m²
Firebox surface
13.75 m²
Tube heating surface
120.774 m²
Evaporative heating surface
134.524 m²
Superheater surface
29.915 m²
Total heating surface
164.4 m²

Power plant

Driver diameter
1,448 mm
Boiler pressure
12.4 bar
Expansion type
simple expansion
Cylinders
two, 444 x 610 mm

Power

Power source
steam
Estimated power
895 kW (1,217 PS)
Starting effort
87.8 kN

Calculated values

Factor of adhesion
1 : 4.07
Optimal speed
63 km/h
Power-to-weight ratio
15.5 kW/t
Heating Surface Equivalent
263.1 m²
Cylinder volume/HSE
1 : 719.09
Adhesive weight/Total
1 : 1.59
Tractive force/Heating surface
1 : 11.15
Grate area/Heating surface
1 : 57.10
Firebox/Tube surface
1 : 8.78
Total/Superheater
1 : 4.50
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