D-D
See also category: D-D locomotives"D-D" means there are two trucks. Each truck has four powered axles. Examples include the EMD DD units.
Read more about this topic: AAR Wheel Arrangement
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D-D
See also category: D-D locomotives"D-D" means there are two trucks. Each truck has four powered axles. Examples include the EMD DD units.
Read more about this topic: AAR Wheel Arrangement