Home Page › Forums › Modeling the Missouri Pacific, Texas & Pacific, etc › HO Scale › Building a Mopac GP-12 1065 (ex M-I RS-3) › Reply To: Building a Mopac GP-12 1065 (ex M-I RS-3)
Just to add to the research on this project; here’s a GP-12 with the two radiator fans both being the type as used a GP-7 or GP-9 and not having the high cowling applied to one. Note to they are placed at a different 45 degree angle than the black and white photograph. So look at your photos carefully when modeling one of these locomotives. I’ve noticed the pilot hand railings have minor detail differences, the placement of the air tanks also can be different depending on the locomotive.
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So the sausage making starts; I have a drill press in the garage so I put in a small drill bit (1/16”) and drilled holes around the Alco fan and then took a sprue cutter and cut from hole to hole to get to this step. You could also do this with a Dremmel tool or even a hand drill. The Bachmann plastic is fairly soft so I used the sprue cutter to remove some additional plastic too. The remaining plastic will be removed using various files. One thing to remember is to save the two number boards as they will be glued back on the unit after the box for the fans is added.
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