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A GN Electric Boxcab Slideshow, circa 1924.

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Postcard depiction the GE AC Boxcab electric locomotives used by the Great Northern to take trains through the old Cascade Tunnel. The old tunnel was electrified by the railroad in 1909; these locomotives began work there at the time and remained working until the new Cascade Tunnel was completed in 1929. Circa 1924.

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Postcard depiction the GE AC Boxcab electric locomotives used by the Great Northern to take trains through the old Cascade Tunnel.
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Great Northern Boxcab

Alco-GE 3-Phase 5000 Series Electric Locomotive
The GN boxcab locomotives were the first electric locomotives purchased by the Great Northern Railway (GN) for use through the Cascade Tunnel.The four units delivered were designated as Alco-GE three-phase 5000 series locomotives. The electric locomotives produced 1000 hp each and had a B-B wheel arrangement. They were three-phase electric locomotives, built in February and March 1909, delivered in Pullman Green. The GN numbered them 5000–5003 and they were used until May 1927.

GN Boxcab Overview
Type and origin
Power type: Electric
Builder: GE and ALCO
Build date: 1909

Specifications
Configuration: 0-4-4-0
UIC class: B-B
Gauge: 4 ft 8 1⁄2 in (1,435 mm)
Wheel diameter: 60 in (1.5 m)
Length: 44 ft 2 in (13.46 m)
Width: 10 ft 0 in (3.05 m)
Locomotive weight: 230,000 lb (100 t)
Electric system(s): 6.6 kV, 25 Hz AC (3-Phase)
Current collection: Pantograph
Traction motors: 4 × GE-1506
Gear ratio: 19:81

Performance figures
Maximum speed :15 mph (24 km/h)
Power output: 1,500 hp (1,100 kW)
Tractive effort:
​ • Starting: 57,500 lbf (256 kN) at 25% adhesion
 • 1 hour: 38,000 lbf (170 kN)
 • Continuous: 34,800 lbf (155 kN)
Factor of adhesion: 25%

Career
Operator: Great Northern Railway
Number in class: 4
Numbers: 5000–5003
Delivered: 1909

See also:

Electric Locomotives

Great Northern Railway

Locomotives