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A carload of corrugated pipe travels across the author’s layout. The pipes were made by wraping heavy-duty aluminum foil around a bolt. MODEL PHOTOS BY THE AUTHOR


Modeling a load of corrugated pipe


Here is how you can make a realistic and inexpensive load that will look great in a gondola or riding on a flat car/David Yadock


I


n a search for an interesting HO scale freight car load that I could construct at minimal cost and with-


out too much effort, I hit upon the idea of loads of corrugated pipe stacked in wooden cradles. These loads could be placed in either gondolas or on flat cars and be removeable. Building them would be relatively simple, although the aluminum foil used in their construction would be somewhat fragile. Care would have to be taken so as not to damage the pipes when handling them.


RAILROAD MODEL CRAFTSMAN


The first step is to get a carriage bolt of sufficient length and diameter to serve as a pattern for the heavy duty foil that will be wrapped around it to make the corrugated pipes. I chose one of about ³₈″ diameter by 4¹₂″ long. It was purchased in a hardware store for around a dollar. Using this bolt, I could create pipes that would be approxi- mately two HO scale feet in diameter. To determine how large a piece of foil


would be needed, I first determined the circumference of the carriage bolt by


laying it on a flat surface and marking a line on the end of the bolt and the flat surface. I rolled the bolt until the line made one complete revolution, and then I made another mark on the flat surface to match the line on the bolt. I measured the distance between the two lines and added another ¹₁₆″ to the measured circumference of the bolt. This additional amount provided glu- ing surface at the seam of the pipe. With this information I now had the width of the aluminum foil. I then


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