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CNW Class E-4 Streamlined Steam Locomotive

The Chicago and North Western Railway's Class E-4 comprised nine coal-burning streamlined 4-6-4 "Hudson" steam locomotives built in 1937 by Alco.

They were built to haul the road's famous "400" express passenger trains, but before they were even delivered the railroad's management decided that streamlined steam was the wrong direction and instead placed orders with General Motors Electro-Motive Division for new diesel locomotives. The displaced E-4.s instead worked other trains until they were withdrawn from service in 1953 and scrapped. The nine E-4s were almost identical in specification and purpose to the Milwaukee Road's six class F7 locomotives, and they were built by the same builder at the same time, yet they were different in almost every detail of design.

In fiction
Speedy from the animated children's television series Chuggington is based on the CNW Class E-4 minus the tender.

Other CNW steam locomotives
CNW Class D 4-4-2 – A major workhorse of the C&NW, some were used on the Minnesota 400.
CNW Class E 4-6-2 – Some converted to "ES" class with similar shrouding to the E-4. The ES engines succeeded Class D locomotives on the Minnesota 400.
CNW Class E-2 4-6-2 – Twelve locomotives, four of which were converted to "E-2-a" class and were the original locomotives for the Twin Cities to Chicago 400 before being replaced by EMD E3 diesel units. The remaining eight were converted to "E-2-b" locomotives.

CNW Class E-4 Overview
Type and origin
Power type: Steam
Builder: American Locomotive Company
Serial numbers: 68982–68989, 69028
Build date: 1937
Total produced: 9
Specifications
Configuration: 4-6-4
UIC classification: 2′C2′ h2
Gauge: 4 ft 8 1⁄2 in standard gauge
Driver diameter: 84 in
Length: 101 ft 9 3⁄4 in
Weight on drivers: 216,000 lb
Locomotive and tender combined weight: 791,500 lb
Fuel type: Coal
Water capacity: 20,000 US gal
Boiler pressure: 300 lbf/in2
Firegrate area: 90.7 sq ft
Heating Surface Total: 3,958 sq ft
Superheater area: 1,884 sq ft
Cylinders: Two
Cylinder size: 25 in × 29 in
Performance figures
Tractive effort: 36,050 lbf
Career
Operator: Chicago and North Western Railway
Road Numbers: 4001–4009
Disposition: All scrapped.

See also:

Streamlined Steam Locomotives

Chicago & North Western

Steam Locomotives

Locomotives

American Locomotive Company

A C&NW Class E-4 Slideshow.

The Chicago and North Western's streamlined Class E-4.
Chicago and North Western herald.
Alco logo.

The Chicago and North Western's streamlined Class E-4.