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Erie class N-1
United States | 1911 | 155 produced
Die Lokomotive, August 1934

To accelerate heavy freight trains, the Erie Railroad ordered 20 class N-1 locomotives from Baldwin in 1911, which were the heaviest Mikados at the time. Since this design was a success, a total of 135 more were ordered, which were also manufactured by ALCO in Schenectady and Lima. The boiler pressure of the individual locomotives was between 170 and 200 psi

From 1927 the locomotives were modernized, adding a feed water heater, removing some pipes in the boiler and setting the pressure uniformly at 190 psi. Many received a mechanical stoker, but at least 50 remained hand-fired. Almost all were scrapped between 1947 and 1951, few were sold.

Variantas builtrebuilt
General
Built1911-19131927-1941
ManufacturerALCO, Baldwin, Lima
Axle config2-8-2 (Mikado) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase35 ft
Fixed wheelbase16 ft 6 in
Total wheelbase66 ft 10 1/2 in67 ft 1 in
Service weight328,600 lbs
Adhesive weight236,950 lbs232,900 lbs
Total weight508,900 lbs
Axle load61,600 lbs
Water capacity9,000 us gal
Fuel capacity32,000 lbs (coal)
Power
Power sourcesteam
Estimated power2,750 hp (2,051 kW)3,000 hp (2,237 kW)
Optimal speed30 mph
Starting effort57,543 lbf64,313 lbf
Power Plant
Driver diameter63 in
Boiler pressure170 psi190 psi
Expansion typesimple
Cylinderstwo, 28 x 32 in
Boiler
Grate area70 sq ft
Firebox area263 sq ft
Tube heating area3,939 sq ft3,841 sq ft
Evaporative heating area4,202 sq ft4,104 sq ft
Superheater area877 sq ft843 sq ft
Total heating area5,079 sq ft4,947 sq ft
Calculated Values
steam locomotive
freight
last changed: 04/2023
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