![]() The "W" suffix used for some models indicates the then-optional wide-nose "North American" safety cab.įour axle models Common features For example, the Dash 8-40C is usually rendered as "C40-8". ![]() ![]() However, for simplicity many railroads decided to use designations which follow the pattern of the Dash 7 line. So, for example, "B32-8" designated a B-B configured 3,200 hp (2,390 kW) Dash 8 Series locomotive.Īfter product improvements were made to the line in 1987, the official designations for models in this series changed to "Dash 8.", as shown below. The naming of the Dash 8 Series, and that of its various models, corresponded initially with that of its predecessor, the Dash 7. The Dash 8-40C, introduced in 1987, featured improved reliability. Early versions of the Dash 8 were manufactured on the Dash 7 production line, but their general appearance was different. Manufacture of the improved production units started in earnest in 1987. The Dash 8 prototype was completed in 1984. Traction motors of Dash 8 locomotives were powered by direct current. On all models, that part of the equipment room houses the cooling fans for the dynamic braking system. On models with a traditional narrow short hood, the part of the equipment room immediately behind the cab is taller than the top of the rounded cab roof, giving those models a distinctive appearance. The Dash 8 locomotive bodies were assembled from several modules, creating a combination to fit the length of the chassis. The biggest changes introduced during the production of the Dash 8 Series were the first use of a microprocessor-equipped engine control unit in a diesel locomotive, and the adoption of a modular system in the construction of the vehicle body. The design of the Dash 8 Series is based upon that of the Dash 7 Series. It replaced the Dash 7 Series in the mid-1980s, and was superseded by the Dash 9 Series for freight usage and the Genesis Series for passenger usage in the mid-1990s.Īll models of the Dash 8 Series are powered by a 16- or 12-cylinder, turbocharged, GE 7FDL 4-stroke diesel engine. The Dash 8 Series is a line of diesel-electric freight locomotives built by GE Transportation.
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