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Delaware & Hudson class U-II
later class E-1a
United States | 1898 | 10 produced
Railway and Locomotive Engineering, January 1899

The locomotives later grouped together in the class E-1 were a total of ten Camelback consolidations that the Delaware & Hudson procured in 1898 and 1899 for burning loose anthracite coal. Three pieces were created by converting a 4-4-0 and two 2-6-0. Seven others were newly built by Dickson and initially designated class U-II before becoming class E-1a.

The Wootten firebox already created a grate area of 80.3 square feet. In addition to the direct radiant area of 170 square feet, it contained a further 104 square feet in so-called “water bars”. One example of the class was built as a compound locomotive with comparatively large cylinders with a diameter of 23 and 34 inches. It was later simpled and scrapped along with its E-1 and E-1a class sisters between 1927 and 1928.

General
Built1898
ManufacturerDickson
Axle config2-8-0 (Consolidation) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase23 ft 2 in
Fixed wheelbase16 ft 4 in
Total wheelbase51 ft
Service weight150,100 lbs
Adhesive weight134,500 lbs
Total weight234,600 lbs
Axle load33,625 lbs
Water capacity4,000 us gal
Fuel capacity14,000 lbs (coal)
Power
Power sourcesteam
Estimated power1,500 hp (1,119 kW)
Optimal speed34 mph
Starting effort28,414 lbf
Power Plant
Driver diameter56 in
Boiler pressure180 psi
Expansion typesimple
Cylinderstwo, 20 x 26 in
Boiler
Grate area80.3 sq ft
Firebox area274 sq ft
Tube heating area1,712 sq ft
Evaporative heating area1,986 sq ft
Total heating area1,986 sq ft
Calculated Values
steam locomotive
freight
camelback
last changed: 09/2022
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