Editing EMD SD50 (section)

==Technical==
The SD50 is powered by [[V16 engine|V16]] 16-645F3 series diesel engine driving either an EMD AR11A-D14 or an EMD AR16A-D18 traction [[alternator]]. The power generated by the traction alternator drove 6 EMD D87 [[traction motors]] rated at 1170 amps each.

The SD50 was available with multiple traction motor gearing ratios and wheel sizes, the most common of which was the 70:17 ratio with {{convert|40|in|mm|0|adj=on}} wheels, which allowed for a top speed of {{convert|70|mph|abbr=on}}. Other gearing options for the SD50 with {{convert|40|in|mm|0|adj=on}} wheels included 69:18 for {{convert|76|mph|abbr=on}}, 67:19 for {{convert|82|mph|abbr=on}} and 66:20 for {{convert|88|mph|abbr=on}}. The SD50 was also available with {{convert|42|in|mm|0|adj=on}} wheels.

The SD50 was also available with either HT-C trucks (identified with a hydraulic shock on the side of the middle axle of each truck) or the earlier [[Flexicoil truck]]s. Some investigators implicated the HT-C truck in derailments of [[Amtrak]]'s [[EMD SDP40F|SDP40Fs]], so [[Conrail]] chose the Flexicoil C trucks for their SD40-2s and their first order of SD50s—the only customer to do so. The controversy surrounding the HT-C truck was eventually disproved, and Conrail chose HT-C trucks for their second order of SD50s and SD60s.