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EMD F-Units
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F-Units in the 60s and 70s
This page is under construction. Watch for developments! I've been collecting info from many sources on the Valley's F-units, and until now haven't organized them in any way. To start out with, this page will be a place to "park" these tidbits of prototype and model information until I get a chance to arrange it in a better way. Spark Arrestors LV F-units were fitted with screen type spark arrestors about a year after they were delivered. I haven't yet found a photo that shows these clearly enough for my satisfaction, but they appear to be simple rectangles of screen rolled into a half tube and attached to the top of the exhaust stacks, probably by straps although I can't see the attachment method in any photo. It's not clear to me if the ends were open or closed in with a semi-circle of screening. Cal-Scale makes an HO scale brass casting that includes both the exhaust stack and spark arrestor, so you would have to cut off the kit exhaust stacks and substitute these. You could duplicate the Cal-Scale spark arrestor with a 17/64" length of 3/16" plastic tubing, cut in half and sanded to a height of 1/16". Attach this directly to the kit exhaust. Details West #139 or OMI #9568 have been described as similar, but I haven't seen these parts myself. FT
F3A and F3B
F7A and F7B Spotting Features
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