EMD GP7
Owner Quantity Numbers
Electro-Motive Division ( demonstrator ) 1 525
Electro-Motive Division ( demonstrator ) 3 100 ( ex 922 ) , 200 , 300
Aberdeen and Rockfish Railroad 1 205
Atchison , Topeka and Santa Fe 244 2650-2893
Atchison , Topeka and Santa Fe 5 2788A-2792A
Atlanta and St. Andrews Bay 2 501-502
Atlanta and West Point Rail Road 5 571-575
Atlantic and East Carolina Railway 1 501
Atlantic Coast Line Railroad 128 105-199 , 221-253
Baltimore and Ohio Railroad 33 720-731 , 740-746 , 910-922 , 6405
Bangor and Aroostook Railroad 16 560-575
Belt Railway of Chicago 8 470-477
Boston and Maine Railroad 23 1555-1577
Butte , Anaconda and Pacific Railway 3 101-103
Central of Georgia Railway 15 106-107 , 120-132
Central Railroad of New Jersey 13 1520-1532
Atlantic Coast Line Railroad ( C & WC ) 21 200-220
Chesapeake and Ohio Railway 180 5700-5719 , 5739-5797 , 5800-5900
Chicago and Eastern Illinois Railroad 30 203-232
Chicago and North Western Railway 110 1521-1550 , 1556-1559 , 1562-1599 , 1601-1603 , 1625-1659
Original buyers -- Locomotives built by Electro-Motive Division , USA
The EMD GP7 is a four-axle (B-B) road switcher diesel-electric locomotive built by General Motors Electro-Motive Division and General Motors Diesel between October 1949 and May 1954. Power was provided by an EMD 567B 16-cylinder engine which generated 1,500 horsepower (1,119 kW). The GP7 was offered both with and without control cabs, and those built without control cabs were called a GP7B. Five GP7B's were built between March and April 1953. The GP7 was the first EMD road locomotive to use a hood unit design instead of a car-body design. This proved to be more efficient than the car body design as the hood unit cost less to build, was cheaper and easier to maintain, and had much better front and rear visibility for switching. Of the 2,734 GP7's built, 2,620 were for American railroads (including 5 GP7B units built for the Atchison, Topeka and Santa Fe Railway), 112 were built for Canadian railroads, and 2 were built for Mexican railroads. This was the first model in EMD's GP (General Purpose) series of locomotives. Concurrently, EMD offered a six-axle (C-C) SD (Special Duty) locomotive, the SD7. The GP7 was replaced by the GP9 model in GM-EMD's GP sequence.