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The reference for locomotives and railcars

Western Maryland class H-3c

United States 1892 2 produced
H-3c No. 348 with the Western Maryland Fireball in September 1952 at Elkins, West Virginia Taylor Rush / Max Miller collection

In 1892, the West Virginia Central & Pittsburgh was one of the railroads which bought Vauclain compounds from Baldwin to test their suitability. They decided that Kent Ridge north of Davis City would be a topographically challenging line and so they ordered their numbers 28 and 29 as Consolidations. Their four cylinders had diameters of 15 and 22 inches, while the stroke was 26 inches. With a driver diameter of only 50 inches, they could deliver a starting tractive effort of 29,328 pounds in simple mode and 24,440 pounds in compound mode.

When the WVC&P became part of the Western Maryland in 1905, the two locomotives became class H-3c No. 347 and 348. Some years later they were simpled with two cylinders with a diameter of 19 inches. No. 347 was sold to the Virginia Central in 1920 which scrapped it in 1938. No. 348 was used by the Western Maryland until 1952.

Technical data

General

Property as built simpled
Built 1892
Manufacturers Baldwin
Wheel arrangement 2-8-0 (Consolidation)
Gauge 1,435 mm (Standard gauge)

Dimensions and weights

Property as built simpled
Wheelbase 6.63 m
Total wheelbase 15.14 m
Service mass 57.2 t 58.8 t
Adhesion mass 49.9 t 53.6 t
Rigid wheelbase 4.27 m
Water capacity 11,356 l 15,899 l
Fuel capacity 8.2 t (coal)
Total mass 98.9 t
Axle load 13.8 t

Boiler

Property as built simpled
Grate area 2.694 m²
Firebox surface 12.914 m² 13.285 m²
Tube heating surface 163.324 m² 163.417 m²
Evaporative heating surface 176.237 m² 176.702 m²
Total heating surface 176.2 m² 176.7 m²

Power plant

Property as built simpled
Driver diameter 1,270 mm
Boiler pressure 12.4 bar 11.7 bar
Expansion type compound simple expansion
Cylinders four, HP: 381 x 660 mm and LP: 559 x 660 mm two, 483 x 660 mm

Power

Property as built simpled
Power source steam
Estimated power 597 kW (812 PS)
Starting effort 108.7 kN 120.7 kN
Starting effort simple 130.5 kN

Calculated values

Property as built simpled
Factor of adhesion 1 : 4.50 1 : 4.36
Optimal speed 34 km/h 31 km/h
Power-to-weight ratio 10.4 kW/t 10.2 kW/t
Heating Surface Equivalent 240.8 m² 243.1 m²
Cylinder volume/HSE 1 : 1,297.90 1 : 993.73
Adhesive weight/Total 1 : 1.15 1 : 1.10
Tractive force/Heating surface 1 : 12.88 1 : 14.26
Grate area/Heating surface 1 : 65.42 1 : 65.59
Firebox/Tube surface 1 : 12.65 1 : 12.30
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