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The F7 succeeded the F3 model in GM-EMD's F-unit series, and was replaced in turn by the F9. Final assembly was at GM-EMD's La Grange, Illinois , plant or GMD's London, Ontario , facility. There was no F4, -5 or -6 model; "7" was chosen to match the contemporary twin-engine E7 , and was also applied to the new GP7 road-switcher.
Minimum site dimensions were dictated by the distance and geometry required for the high-speed trains under development to reach their top speeds of 250 to 300 mph (400 to 480 km/h); the minimum specified radius of curvature was 2.5 mi (4.0 km), making the planned test track/guideway oval approximately 5 mi × 8 mi (8.0 km × 12.9 km).
The locomotive is an EMD F7A built in 1950, and used in service by the Kansas City Southern Railway until 1991, although it was converted to a slug unit sometime in the 1970s and the body was filled with concrete and old wheels.
The FT, introduced in 1939 with the new 1,350 hp (1.01 MW) 567 engine and Blomberg B trucks, was a successful design, and remained in production during WWII.. The F3 (1946) had a different roof arrangement that included the replacement of the FT's boxy dynamic brake structure with two under-roof grids, two exhaust stacks instead of four, and four cooling fans grouped together instead of ...
The following is a list of locomotives produced by the Electro-Motive Corporation (EMC), and its successors General Motors Electro-Motive Division (GM-EMD) and Electro-Motive Diesel (EMD). Streamlined power cars and early experimental locomotives
In October 2010, Caterpillar announced it was investing US$50 million to acquire and to renovate an existing 740,000-square-foot (69,000 m 2) building for assembly of EMD brand locomotives and to build a locomotive test track on a 75-acre (0.30 km 2) site located in Muncie, Indiana. The Muncie facility allows EMD to supply locomotives to ...
Santa Fe's aging fleet of F7 units were approaching retirement age in 1970. These units were remanufactured into switchers and named CF7. Santa Fe used them for a decade and sold many of them to short lines around the states. Many of those were still being used as of 2003. [4]
The design was based on the Electro-Motive Diesel EMD F7 locomotive. [1] The first 11 were delivered with EMD 16-567B , 1,119 kW (1,501 hp) engines and four powered axles with the remainder having 16-567C, 1,305 kW (1,750 hp) engines and six powered axles.