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The C30-7 model was manufactured between 1976 and 1986 and was fitted with a 16-cylinder 7FDL engine. It replaced the U30C model. A total of 1,137 C30-7s were built, all of them for North American railroads. These production numbers include the 50 C30-7A variants described below.
A variant of the C30-7, 50 GE C30-7As were purchased by Conrail in mid-1984. Externally similar to the GE C30-7 model, six tall hood doors per side (in place of eight) showed it had a 12-cylinder (rather than 16-cylinder) prime mover. Both engines produced 3,000 horsepower (2,200 kW) but the C30-7A's smaller engine used less fuel.
However, for simplicity, many railroads decided to use designations which follow the pattern of the Dash-7 line. Thus, for example, the Dash 8-40C is usually rendered as "C40-8". The "W" suffix indicates the then-optional wide-nose "North American" safety cab. For example, the Santa Fe used the designation "B40-8W" for GE's "Dash 8-40BW".
The GE B30-7 is a diesel-electric locomotive model produced by GE from 1977 to 1983 as part of their Dash 7 Series, featuring a 16 cylinder engine producing 3,000 horsepower. A total of 399 units were produced, including 120 cabless B30-7A units. [1] The B30-7AB/A(B) is an unofficial model. The B30-7 was GE's successor to the U30B.
The GE U36C is a 3600 hp diesel-electric locomotive model built by GE Transportation Systems. The length of the locomotive was 67 ft 3 in (20.50 m), standard for U30C, U33C, U34CH, U36C, U36CG, C30-7 and C36-7.
Upon each rebuild, GE classified 8022 (and reclassified 8007) as model C30-8Mi. As rebuilt by New Zealand Rail, DXR8007 was classified by GE as their model C30-7M. In 2007, DXR8022 was one of the locomotives involved in a biofuel trial using a fuel mix of 5 per cent biodiesel and 95 per cent regular diesel over a period of six months. [ 22 ]
Keeping in tradition with GE's locomotive series nicknames beginning with the "Dash 7" of the 1970s, the C44-9W was dubbed the Dash 9 upon its debut in 1993. Part of GE's "Dash 9" series of locomotives, the Dash 9-44CW shares its frame, HiAd trucks, 16-cylinder 7FDL engine, and 752AH-31 traction motors with the GE Dash 9-40CW .
The GE Dash 8-32B (also classified as B32-8 or D8-32B by some railroad companies) is a 4-axle 3,150 hp (2,350 kW) diesel-electric locomotive built by GE Transportation between 1984 and 1989. It is part of the GE Dash 8 Series of freight locomotives. A total of 49 examples of the Dash 8-32B model were built for North American railroads.