EMD SD24
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The EMD SD24 is a 2,400 hp six-axle diesel-electric locomotive built by General Motors' Electro-Motive Division of La Grange, Illinois between July 1958 and March 1963. A total of 224 units were built
Chicago Burlington & Quincy 504, at the Illinois Railway Museum, July 19, 2009; Note the "F" on the sill under the short high hood, indicating the "front" of the locomotive
AT&SF 4566, location unknown, December 1971
UP 404 taken from cab of ATSF 22C with 1st 23, The Grand Canyon, near West Tower, Barstow, CA on August 20, 1967
EMD GP20
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The EMD GP20 is a 4-axle diesel-electric locomotive built by General Motors' Electro-Motive Division between November 1959 and April 1962. Power was provided by an EMD 16-567D2 16-cylinder turbocharge
EMD SD24
…EMD production locomotive to be built with an EMD turbocharged diesel engine. The first SD24 was built sixteen months before the four-axle (B-B) model GP20. Power output of the SD24 was 33 percent higher than the 1,800 hp (1,340 kW) of the concurrent Roots blower-equipped SD18s with the same engine…
ATSF 3055 in San Bernardino, California
WP #2001, the first production GP20, leads a special train in 2009. Note the high nose on the short hood.