I was looking HERE and saw something called an SD 60F. Now I saw one before but I didn’t know what it was. Can you please tell me a bit about these things? They look interesting[:D]
The SD60F is nothing more than a standard SD60 with a full cowl body like th F45’s. This enabled the crew to move through the engine without having to be out in the bitter canadian winter weather. The CN had them. Not sure if they are still in use. Maybe a CN fan cna supply info on that.
All except one or two that have been wrecked are still in use by CN, the same for the SD50Fs. Once CN became a private company new management decided that the extra costs of the the cowl body were not worthwhile and no more are likely to be purchased. The problem with the cowl body is that repairs that can be done through the hood doors on an normal locomotive, might require part of the cowl to be lifted off.
Locomotive parts tend to be large and heavy, hoists are mechanic’s best friend (saves back). Changing things like power assemblies would require the removal of the main portion of the cowl, which isn’t necessary on a hood unit. Also the cowl restricts the swing of very large wrenches when tightening things on the diesel.
The and SD60F were given a Draper Taper (named after a former CN assistant chief of motive power) where a thinner section of body that widens out to full width is placed behind the cab, although the roof remains full-width the length of the locomotive. This improves rear visibility somewhat, but the locomotives still cannot lead a train in reverse like a hood unit can.