Skip to content
Locomotive-Specs
EMD F7A – photo 1© trainspo.com
Diesel locomotive

EMD F7A

Built by EMD, GMD

Power output
1,100 kW
1,475 hp
Weight
112 t
246,917 lb
Length
15.44 m
50 ft 8 in
Track gauge
1,435 mm
Standard gauge
Years built
1949–1953
2,366 units
Axle arrangement
Bo'Bo'

Overview of the EMD F7A

Discover the iconic EMD F7A diesel locomotive, a powerful workhorse that defined American railroading for decades.

Built by EMD between 1949 and 1953, the F7A is recognized for its distinctive "bulldog nose" cab and its robust performance. This model features a 16-567B prime mover, delivering an impressive 1100 kW of power, making it suitable for a wide range of freight and passenger services.

With a length of 15.44 meters and a weight of 112 tons, the F7A operates on standard 1435 mm gauge tracks and features a Bo'Bo' wheel arrangement. Its substantial size and powerful engine ensured it was a common sight across numerous United States railroads, including the Atchison, Topeka and Santa Fe Railway, Burlington Northern, and Union Pacific.

The F7A's versatility and reliability led to its widespread adoption by many railway companies, contributing significantly to the efficiency of freight and passenger transport during its operational era. Explore the legacy of this classic diesel locomotive.

EMD F7A technical specifications

Value
SeriesEMD F7
Built byEMD, GMD · 1949–19532,366 units
Power output1,100 kW1,475 hp
Prime moverEMD 16-567B
Track gauge1,435 mmStandard gauge4 ft 8½ in
UIC axle arrangementBo'Bo'
Length15.44 m50 ft 8 in
Width3.23 m10 ft 7 in
Height4.57 m15 ft 0 in
Weight112 t246,917 lb
Source of the data: en.wikipedia.orgView this model on trainspo.com Spotted an error? Let us know

Operators of the EMD F7A

Railway companies that have operated the F7A, with the class designation used by each of them.

OperatorClassCountry
Atchison, Topeka and Santa Fe RailwayATSF F7AUnited States
Burlington NorthernBN F7AUnited States
Canon City & Royal Gorge RailroadCRRX F7AUnited States
Chicago and North Western Transportation CompanyCNW F7AUnited States
Clinchfield RailroadCRR F7AUnited States
Durbin and Greenbrier Valley RailroadDGVR F7AUnited States
Fillmore & Western Railway Co.F&W F7AUnited States
Fillmore and Western RailwayFWRY F7AUnited States
Kansas City Southern RailwayKCS F7AUnited States
Potomac Eagle Scenic RailroadPESR F7AUnited States
San Luis and Rio Grande RailroadSLRG F7AUnited States
Seminole Gulf RailwaySGLR PC-7United States
Union Pacific RailroadUP F7AUnited States
Wabash RailroadWAB F7AUnited States
Western Pacific RailroadWP F7AUnited States

EMD F7A photos

Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.

More diesel locomotives from EMD

All EMD models

Similar diesel locomotives from other manufacturers

All diesel locomotives
All EMD models All diesel locomotives