EMD E8 Train Specifications: A Classic Diesel-Electric Locomotive

EMD E8 Train Specifications: A Classic Diesel-Electric Locomotive

The EMD E8 was a powerful and stylish diesel-electric locomotive built by Electro-Motive Division (EMD) of General Motors between 1949 and 1954. It was designed primarily for passenger service and became one of the most iconic locomotives of its era. Below is a detailed look at the specifications that made the E8 a reliable and efficient choice for railroads across North America.

General Specifications

• Manufacturer: Electro-Motive Division (EMD), General Motors
• Production Years: 1949–1954
• Total Units Built: 450 (A-units) + 46 (B-units)
• Primary Use: Passenger trains
• Successor: EMD E9

Engine and Power

• Prime Mover: Two EMD 567B V12 diesel engines
• Horsepower: 2,250 HP (total)
• RPM Range: 800 max
• Fuel Capacity: 1,200–1,500 gallons
• Cooling System: Radiator fan-cooled
• Exhaust Type: Turbocharged

Electrical System and Transmission

• Generator: DC Generator (Electrically powered traction motors)
• Traction Motors: Four General Motors D27B (DC Motors)
• Starting Tractive Effort: 56,500 lbf (251.4 kN)
• Continuous Tractive Effort: 31,000 lbf (138 kN) at 11 mph

Performance and Speed

• Maximum Speed: 85–100 mph (137–161 km/h)
• Gear Ratio: 55:22
• Fuel Efficiency: Significantly better than steam locomotives

Design and Features

• Wheel Arrangement: A1A-A1A (Two powered axles per truck, center axle unpowered)
• Length: 70 feet 3 inches (21.41 m)
• Width: 10 feet 7 inches (3.23 m)
• Height: 14 feet 6 inches (4.42 m)
• Weight: 157 tons (314,000 lbs)
• Body Type: Streamlined for aerodynamics
• Headlight Arrangement: Dual-beam Mars light (in some models)
• Braking System: Air brakes

Legacy and Preservation

Despite being retired from mainline service by the 1970s, several E8 locomotives are preserved in museums and tourist railroads. The locomotive remains a favorite among railroad enthusiasts for its timeless design and historical significance.

The EMD E8 was an engineering marvel of its time, combining power, efficiency, and style in a locomotive that defined the golden age of American passenger rail travel.

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