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Classic Streamliners - TRAIN​CYCLOPEDIA

Chicago and North Western Streamlined 4-6-2 Pacific No. 617.

An E class Streamlined 4-6-2 Pacific of the Chicago and North Western Railway.

C&NW Class E Superheated Streamlined 4-6-2 Pacific Steam Locomotive
In 1941 C&NW Class E Superheated 4-6-2 Pacific locomotives Nos. 617 and 620 were fitted with streamlined casing identical to that used on the E-4 Hudsons.  The casing looked slightly bulkier on the 4-6-2's shorter wheelbase and added almost 8 tons of weight, however tractive effort was added when the boiler pressure was reset to 200 psi. These two locomotives were built to haul the road's famous "400" express passenger trains, but before they were ever delivered, the CNW management decided that using streamlined steam was taking a step backwards and ultimately decided to acquire new diesel-electric locomotives from the General Motors Electro-Motive Division. The two locomotives instead were assigned to service pulling the Minnesota 400 passenger train. Dissimilar to many of the other streamlined steam locomotives, the two engines continued to operate in full shrouds even after they were removed from the Minnesota 400 and placed in local passenger service. They were withdrawn from service in 1953 and scrapped. 

C&NW Class E Superheated Streamlined 4-6-2 Overview

Type and origin
Power type: Steam
Builder: Alco-Schenectady
Build date: 1914. Streamlined shroud added 1941.
Total produced: 2
Specifications
Whyte notation: 4-6-2
Gauge: 4 ft 8 1⁄2 in standard gauge
Driver diameter: 75 in  (1,905 mm)
Driver Wheelbase: 13.50 ft  (4.11 m)
Engine Wheelbase: 34.67 ft  (10.57 m)
Wheelbase Locomotive and tender: 66.98 ft  (20.42 m)
Weight on drivers: 163,000 lbs  (73,936 kg)
Locomotive weight: 260,000 lbs  (117,934 kg)
Locomotive and tender combined weight: 425,700 lbs  (193,094 kg)
Fuel type: Coal
Fuel capacity: 15 tons  (13.60 MT)
Water capacity: 8,275 gals  (31.34 ML)
Boiler pressure: 200 psi  (13.80 kPa)
Firegrate area: 236 sq ft  (21.92 m2)
Combined heating surface: 3,841 sq ft  (356.84 m2)
Superheater area: 691 sq ft  (64.20 m2)
Valve gear: Baker or Walschaert
Cylinders: Two, outside
Cylinders (dia x stroke): 25" x 28"  (635 x 711 mm)
Performance figures
Tractive effort: 36,692 lbs  (16,643.23 kg)
Factor of adhesion: 4.44
Career
Operator: Chicago and North Western Railway
Road Numbers: 617, 620
Disposition: All scrapped. 

See also:

Streamlined Steam Locomotives

Chicago & North Western

Steam Locomotives

Chicago and North Western Streamlined 4-6-2 Pacific No. 617.
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An E class Streamlined 4-6-2 Pacific of the Chicago and North Western Railway.