coach roofs

[NW Modeling List]

Roger (and all) The ends were not the only difference. The first 3 PG's Roanoke modernized kept the clerestory roof structure for a car height of 14'. Roanoke rounded both sides and made appropriate rounded corners on the ends and called this a "turtleback" roof. On the later cars, they completely rebuilt the roof structure to make it a streamlined profile with a car height of 13'6" (same as the lightweights) So it was appropriate to make the ends flat. They even added the cinder deflectors they had put on the PM's. So if you are doing one of the first three cars, you need the taller "turtleback" roof. For the later cars (of which there were many more) any streamline roof section will do. Personally, I do not add to the bottom of the Northeastern roof (as Bob did). To my eye, the height is correct for a "streamline" roof as is. I also do not use completely flat ends (as Bob did) because the PG's kept the angled ends that were common to heavyweights. They just extended them upward. When I do a Rivarossi coach conversion, this requires a bit more work. After I fill the end windows, I entend the ends upward with about .015 styrene and them cover the whole end with sections of .005 to hide all the joints. Finally I cut the top to match the contour of my roof section, which has to be cut to fit between my new ends (angles included).
Jim Nichols
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