GTW Class U4b Streamlined Steam Locomotive

In 1938 the Grand Trunk Western Railroad (a Canadian National Railway subsidiary operating in the U.S.A.) received six new streamlined passenger 4-8-4 Confederation locomotives. The locomotives were built by Lima Locomotive Works of Lima, Ohio. These 4-8-4’s (more commonly known as Northerns) were to handle high-speed passenger trains such as the Maple Leaf and the International on the Grand Trunk Western and their Canadian National Railway connections.

Units:
6405, Class U-4-b, built by Lima in July 1938, serial No. 7759.  It was scrapped in September 1961.
6406, Class U-4-b, built by Lima in July 1938, serial No. 7760.  It was scrapped in March 1960.
6407, Class U-4-b, built by Lima in August 1938, serial No. 7761.  It was scrapped in April 1960.
6408, Class U-4-b, built by Lima in August 1938, serial No. 7762.  It was scrapped in April 1960.
6409, Class U-4-b, built by Lima in August 1938, serial No. 7763.  It was scrapped in March 1960.
6410, Class U-4-b, built by Lima in August 1938, serial No. 7764.  It was scrapped in March 1960.

Overview
Specifications
Class: U-4b
Railroad: Grand Trunk Western (CNR)
Country: U.S.A. /Canada
Whyte: 4-8-4
Number in Class: 6
Road Numbers: 6405-6410
Gauge: Standard
Number Built: 6
Builder: Lima
Year: 1938
Valve Gear: Baker
Driver Wheelbase: 20'
Engine Wheelbase: 44.12'
Overall Wheelbase (engine & tender): 82.71'
Weight on Drivers: 237,900 lbs
Engine Weight: 382,700 lbs
Tender Light Weight: 278,500 lbs
Total Engine and Tender Weight: 661,200 lbs
Tender Water Capacity:  14,300 gals
Tender Fuel Capacity: 20 tons
Driver Diameter: 77"
Boiler Pressure: 275 psi
Cylinders (diameter x stroke): 24" x 30"
Tractive Effort: 52,457 lbs
Firebox Area: 394 sq. ft
Grate Area: 73.60 sq. ft
Evaporative Heating Surface: 3,852 sq. ft
Superheating Surface: 1,530 sq. ft
Combined Heating Surface: 5,382 sq. ft

Disposition: all scrapped
Lima Locomotive Works logo.
Number 6405 was the first U4b delivered to Grand Trunk Western by Lima.
Grand Trunk herald.

Number 6405 was the first U4b delivered to Grand Trunk Western by Lima.

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A U-4b Class Slideshow.

Black & white images courtesy of Chuckman's:  http://chuckmanschicagonostalgia.wordpress.com

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