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Trailer roof edge question.
I'm in the "thinking about it" stage of designing and building an aerodynamically slippery ultralight fifth-wheel travel trailer. One thing I'm not finding in the wild is information about turbulent drag over side-to-roof corners.
The simplest build for the center section of the trailer would be a rectangular box, or I could (almost as easily) put a radiused (anywhere from "sharp" to 6") edge on it. Any references, information or educated opinions about which way I should go?
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