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
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